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Note: This page contains sample records for the topic "division head rf" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

Dr. Jim Wright Acting Head, Division of Radiation Oncology  

E-Print Network [OSTI]

Dr. Jim Wright Acting Head, Division of Radiation Oncology Associate Professor Department outstanding contributions to the care and treatment of cancer patients through research. Dr. Jim Wright has

Haykin, Simon

2

June 8, 2006 15.8 ASSISTANT DEPARTMENT HEAD/DIVISION DIRECTOR ADDENDUM  

E-Print Network [OSTI]

June 8, 2006 15.8 ASSISTANT DEPARTMENT HEAD/DIVISION DIRECTOR ADDENDUM THIS ASSISTANT DEPARTMENT HEAD / DIVISION DIRECTOR ADDENDUM, hereinafter the "Addendum," is entered into by Colorado School

3

June 8, 2006 15.7 ACTING OR INTERIM DEPARTMENT HEAD/DIVISION DIRECTOR ADDENDUM  

E-Print Network [OSTI]

June 8, 2006 15.7 ACTING OR INTERIM DEPARTMENT HEAD/DIVISION DIRECTOR ADDENDUM THIS ACTING OR INTERIM DEPARTMENT HEAD / DIVISION DIRECTOR ADDENDUM, hereinafter the "Addendum," is entered as a temporary or short-term replacement for his or her Department Head/Division Director, who is temporarily

4

Superconducting Magnet Division  

E-Print Network [OSTI]

Superconducting Magnet Division DOE NP Program Review - July 06 1 Brookhaven Magnet Division - Nuclear Physics Program Support Activities Superconducting Magnet Program RHIC Operations Support Spin Summary Peter Wanderer, DOE review, July 25, 2006 Acting Head, Superconducting Magnet Division #12

5

Hypertension Research Division  

E-Print Network [OSTI]

Hypertension & Vascular Research Division Department of Internal Medicine Jeffrey L. Garvin, Ph.D. ­ Division Head #12;Prevalence of Hypertension in U.S. Men by Age and Ethnicity 18 ­ 29 30 ­ 39 40 ­ 49 50 Prevalence of High BP Adapted from Burt et al. Hypertension 1995;25:305. 25 50 75 #12;Introduction

Berdichevsky, Victor

6

Recycler barrier RF buckets  

SciTech Connect (OSTI)

The Recycler Ring at Fermilab uses a barrier rf systems for all of its rf manipulations. In this paper, I will give an overview of historical perspective on barrier rf system, the longitudinal beam dynamics issues, aspects of rf linearization to produce long flat bunches and methods used for emittance measurements of the beam in the RR barrier rf buckets. Current rf manipulation schemes used for antiproton beam stacking and longitudinal momentum mining of the RR beam for the Tevatron collider operation are explained along with their importance in spectacular success of the Tevatron luminosity performance.

Bhat, C.M.; /Fermilab

2011-03-01T23:59:59.000Z

7

Superconducting RF Cryomodule Demagnetization  

E-Print Network [OSTI]

This note presents measurements that support the proposition that it is feasible to demagnetize a fully assembled superconducting RF cryomodule.

Crawford, Anthony C

2015-01-01T23:59:59.000Z

8

Mechanical Engineering Division Head | Princeton Plasma Physics...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

design and analysis of large, complex state-of-the-art electromagnetic and mechanical systems used for experimental magnetic fusion research. The Mechanical Engineering...

9

Rf Feedback free electron laser  

DOE Patents [OSTI]

A free electron laser system and electron beam system for a free electron laser which use rf feedback to enhance efficiency. Rf energy is extracted from an electron beam by decelerating cavities and returned to accelerating cavities using rf returns such as rf waveguides, rf feedthroughs, etc. This rf energy is added to rf klystron energy to lower the required input energy and thereby enhance energy efficiency of the system.

Brau, Charles A. (Los Alamos, NM); Swenson, Donald A. (Los Alamos, NM); Boyd, Jr., Thomas J. (Los Alamos, NM)

1981-01-01T23:59:59.000Z

10

Green radio despite "Dirty RF" front-end Myriam Ariaudo*1  

E-Print Network [OSTI]

Green radio despite "Dirty RF" front-end Myriam Ariaudo*1 , Inbar Fijalkow1 , Jean-Luc Gautier1 in order to contribute in a Green radio development. In fact, the effects of typical RF imperfections, like algorithms are applied. Such algorithms enable Green applications (e.g., Orthogonal Frequency Division

Fijalkow, Inbar

11

HEADING FRONTMATTER  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

R.F.; Jacobson, J.J.; and Searcy, E.M. (2012). Dynamic Analysis of Policy Drivers for Bioenergy Commodity Markets. Energy Policy, accepted for publication. 3. Piet, S.J.;...

12

Division of Finance Division of Finance Alignment  

E-Print Network [OSTI]

Division of Finance Division of Finance Alignment September 11, 2014 1 #12;Division of Finance of Finance Goal of the DF Alignment Project The internal and external alignment of the Division of Finance of Finance The Process We Followed 17 Meetings17 Meetings 120+ Pages of Data 103 Themes 12 Meta Themes Goals

Hayden, Nancy J.

13

Can RF help CMOS processors?  

E-Print Network [OSTI]

FOR C OMMUNICATIONS Can RF Help CMOS Processors? Eran SocherRF communication can help increase the wired communicationaluminum and low-K dielectrics help reduce wire delay but do

Socher, Eran; Chang, Mau-Chung Frank

2007-01-01T23:59:59.000Z

14

RF test bench automation Description  

E-Print Network [OSTI]

RF test bench automation Description: Callisto would like to implement automated RF test bench. Three RF test benches have to be studied and automated: LNA noise temperature test bench LNA gain phase of the test benches and an implementation of the automation phase. Tasks: Noise temperature

Dobigeon, Nicolas

15

RESEARCH UPDATE Ecology Division  

E-Print Network [OSTI]

1 RESEARCH UPDATE Ecology Division Biotype has changed its name to Ecotype! Following the re-organisation of Forest Research into five science Divisions and three Support Divisions, the former Woodland Ecology Branches to form the new Ecology Division. We decided to give the divisional newsletter a new name (and

16

RF power generation  

E-Print Network [OSTI]

This paper reviews the main types of r.f. power amplifiers which are, or may be, used for particle accelerators. It covers solid-state devices, tetrodes, inductive output tubes, klystrons, magnetrons, and gyrotrons with power outputs greater than 10 kW c.w. or 100 kW pulsed at frequencies from 50 MHz to 30 GHz. Factors affecting the satisfactory operation of amplifiers include cooling, matching and protection circuits are discussed. The paper concludes with a summary of the state of the art for the different technologies.

Carter, R G

2011-01-01T23:59:59.000Z

17

Division Student Liaisons  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Division Student Liaisons 2014 OFFICE Division Student Liaison Work Email MailStop DIRECTOR'S OFFICE (EA-DO, PCM-DO, CGA-DO, CIO-DO, LC-DO, CFO-DO, HR-OEOD-DO,OMBUDS-DO, LANS,...

18

Division of Administration  

E-Print Network [OSTI]

Contracts & Procurement Don Green Controller Steven Yim Budget Planning & Administration Sarah Song Admin Operations Lieutenant Scot Willey Administration Lieutenant John Brockie Division Communication Editorial Communication Editorial Board looks forward to improving communication within and from the Division and welcomes

de Lijser, Peter

19

Earth Sciences Division annual report 1980  

SciTech Connect (OSTI)

Summaries of the highlights of programs in the Earth Sciences Division are presented under four headings; Geosciences, Geothermal Energy Development, Nuclear Waste Isolation, and Marine Sciences. Utilizing both basic and applied research in a wide spectrum of topics, these programs are providing results that will be of value in helping to secure the nation's energy future. Separate abstracts have been prepared for each project for inclusion in the Energy Data Base. (DMC)

Not Available

1981-07-01T23:59:59.000Z

20

Division of Agriculture,  

E-Print Network [OSTI]

DAFVM Division of Agriculture, Forestry, and Veterinary M e d i c i n e Visit us online at www to the Mississippi State University Division of Agriculture, Forestry, and Veterinary Medicine. Discrimination based-3-14) Mississippi State University's Division of Agriculture, Forestry, and Veterinary Medicine, or DAFVM

Ray, David

Note: This page contains sample records for the topic "division head rf" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

DIVISION OF GRADUATE STUDIES  

E-Print Network [OSTI]

recipients at the time of their graduation to monitor and project the scientific workforce. Between 1961DIVISION OF GRADUATE STUDIES 2012-2013 ACADEMIC YEAR REpORT Excellence in Action Division of Graduate Studies #12;Division of Graduate Studies Kent State University 2012 - 2013 Academic Year Report

Palffy-Muhoray, Peter

22

Integrated training in Cardiovascular Diseases Sponsored by the Division of Cardiology  

E-Print Network [OSTI]

and interventional procedures such as percutaneous interventions such as angioplasty and stent placement Knowlton, Division Head I. Major Diseases 1. Coronary artery disease 2. Congestive Heart Failure 3. Cardiac

Gleeson, Joseph G.

23

Colorado School of Mines Division of Student Life Organizational Chart Updated 9/23/2014 1 | P a g e  

E-Print Network [OSTI]

Head Athletic Trainer Jennifer McIntosh Assistant Trainer Vacant Assistant Trainer Jacob Pope Assistant Trainer Andrew Vanous Head Coaches see next page #12;Colorado School of Mines Division of Student Life Softball Coach Leah Glasgow Head Football Coach Bob Stitt Assistant Football Clem Grinstead Assistant

24

Engineering Division Superconducting  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

& Engineering Division Superconducting Magnet Technology for Fusion and Large Scale Applications Joseph V. Minervini Massachusetts Institute of Technology Plasma Science and Fusion...

25

Unbalanced field RF electron gun  

DOE Patents [OSTI]

A design for an RF electron gun having a gun cavity utilizing an unbalanced electric field arrangement. Essentially, the electric field in the first (partial) cell has higher field strength than the electric field in the second (full) cell of the electron gun. The accompanying method discloses the use of the unbalanced field arrangement in the operation of an RF electron gun in order to accelerate an electron beam.

Hofler, Alicia

2013-11-12T23:59:59.000Z

26

Superconducting Magnet Division  

E-Print Network [OSTI]

Superconducting Magnet Division Ramesh Gupta 20T Target Solenoid with HTS Insert Solenoid Capture Laboratory New York, USA http://www.bnl.gov/magnets/staff/gupta #12;Superconducting Magnet Division Ramesh of HTS may significantly reduce the amount of Tungsten shielding · Summary #12;Superconducting Magnet

McDonald, Kirk

27

DIVISION & TECHNICAL COMMITTEE MEMBERSHIP: -Division Chair of the ASME NDE (Nondestructive Evaluation) Division, 2003-2005  

E-Print Network [OSTI]

DIVISION & TECHNICAL COMMITTEE MEMBERSHIP: - Division Chair of the ASME NDE (Nondestructive Evaluation) Division, 2003-2005 - Member of the Executive Committee of the ASME NDE Engineering Division, 1997-present - Secretary and Vice-Chairman of the ASME NDE Division from 2001 to 2003 - Program

Wong, Pak Kin

28

2010 RAL Space Head, Space Engineering &Technology Division  

E-Print Network [OSTI]

-magnetic cavity that totally excluded the solar wind plasma ­ all the high energy particles were deflected around an engineer's perspective (not a plasma physicist!) a little history... #12;© 2010 RalSpace an Englishman-magnetosphere that would divert the high energy particles around it · What we have now shown is that there are local charge

29

Andrew Hutton Named Head of Jefferson Lab's Accelerator Division |  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD)ProductssondeadjustsondeadjustAbout theOFFICEAmes Laboratory Site|Andrea Lockwood About UsAndrewJefferson

30

Cryogenic vacuumm RF feedthrough device  

DOE Patents [OSTI]

A cryogenic vacuum rf feedthrough device comprising: 1) a probe for insertion into a particle beam; 2) a coaxial cable comprising an inner conductor and an outer conductor, a dielectric/insulating layer surrounding the inner conductor, the latter being connected to the probe for the transmission of higher mode rf energy from the probe; and 3) a high thermal conductivity stub attached to the coaxial dielectric about and in thermal contact with the inner conductor which high thermal conductivity stub transmits heat generated in the vicinity of the probe efficiently and radially from the area of the probe and inner conductor all while maintaining useful rf transmission line characteristics between the inner and outer coaxial conductors.

Wu, Genfa (Yorktown, VA); Phillips, Harry Lawrence (Hayes, VA)

2008-12-30T23:59:59.000Z

31

Division Student Liaisons  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

None Fire Protection (FP-DO) Robert J. Farris (Rob) 667-9045 sirraf@lanl.gov K493 Nuclear Criticality Safety None Operations Support Division (OS-DO) None Radiological...

32

Note on RF Photo-Cathode Gun  

E-Print Network [OSTI]

Emittances in Laser-Driven RF Guns", Proc. 1988 Linear Acc.Palmer, "Preliminary Study of Gun Emittance Correction", BNLLaser-Driven RF Electron Guns", Nuc1. ln stt. Meth. , A275,

Kim, Kwang-Je

2010-01-01T23:59:59.000Z

33

Intelligent Radio Frequency (RF) Monitoring  

E-Print Network [OSTI]

? Intelligent Radio Frequency (RF) Monitoring ? 2009 Armstrong International, Inc. www.armstronginternational.com 2 ?Expect many enjoyable experiences!? David M. Armstrong Present Process Challenges ? Identifying a failure ? Procedure.... Armstrong Steam Trap Challenges ? Identifying a failure ? Manpower ? Location ? Magnitude of failure ? Energy loss ? Loss of heat transfer ? Justification for repair ? ?Speed of Implementation? ? Environmental concerns Manpower Location 4...

Kimbrough, B.

34

SPL RF Coupler Cooling Efficiency  

E-Print Network [OSTI]

Energy saving is an important challenge in accelerator design. In this framework, reduction of heat loads in a cryomodule is of fundamental importance due to the small thermodynamic efficiency of cooling at low temperatures. In particular, care must be taken during the design of its critical components (e.g. RF couplers, coldwarm transitions). In this framework, the main RF coupler of the Superconducting Proton Linac (SPL) cryomodule at CERN will not only be used for RF powering but also as the main mechanical support of the superconducting cavities. These two functions have to be accomplished while ensuring the lowest heat in-leak to the helium bath at 2 K. In the SPL design, the RF coupler outer conductor is composed of two walls and cooled by forced convection with helium gas at 4.5 K. Analytical, semi-analytical and numerical analyses are presented in order to defend the choice of gas cooling. Temperature profiles and thermal performance have been evaluated for different operating conditions; a sensitivit...

Bonomi, R; Montesinos, E; Parma, V; Vande Craen, A

2014-01-01T23:59:59.000Z

35

High-Power Rf Load  

DOE Patents [OSTI]

A compact high-power RF load comprises a series of very low Q resonators, or chokes [16], in a circular waveguide [10]. The sequence of chokes absorb the RF power gradually in a short distance while keeping the bandwidth relatively wide. A polarizer [12] at the input end of the load is provided to convert incoming TE.sub.10 mode signals to circularly polarized TE.sub.11 mode signals. Because the load operates in the circularly polarized mode, the energy is uniformly and efficiently absorbed and the load is more compact than a rectangular load. Using these techniques, a load having a bandwidth of 500 MHz can be produced with an average power dissipation level of 1.5 kW at X-band, and a peak power dissipation of 100 MW. The load can be made from common lossy materials, such as stainless steel, and is less than 15 cm in length. These techniques can also produce loads for use as an alternative to ordinary waveguide loads in small and medium RF accelerators, in radar systems, and in other microwave applications. The design is easily scalable to other RF frequencies and adaptable to the use of other lossy materials.

Tantawi, Sami G. (San Mateo, CA); Vlieks, Arnold E. (Livermore, CA)

1998-09-01T23:59:59.000Z

36

Josephson device with a matched rf source  

SciTech Connect (OSTI)

Analog simulation of a resistance-shunted ac Josephson junction coupled to an rf source with matching impedance reveals (1) added structure in the device's V-I curve even when the source is quiescent and (2) rf-induced steps with peak amplitudes between those produced by voltage and current rf sources. Both results are consistent with experimental data.

Longacre, A. Jr.

1980-03-01T23:59:59.000Z

37

Department Heads Meeting: May 20, 2010 1 Department Heads Meeting  

E-Print Network [OSTI]

technology with broad application across OS ­ Low cost compact acceleration applications such as storage ring injectors, light source drivers, compact linacs for security, industry and medicine · Core capability in rf technology options beyond cold-rf for ILC ­ Pursue ALC warm x-band rf technologies of benefit to both HEP

Wechsler, Risa H.

38

Low jitter RF distribution system  

DOE Patents [OSTI]

A timing signal distribution system includes an optical frequency stabilized laser signal amplitude modulated at an rf frequency. A transmitter box transmits a first portion of the laser signal and receive a modified optical signal, and outputs a second portion of the laser signal and a portion of the modified optical signal. A first optical fiber carries the first laser signal portion and the modified optical signal, and a second optical fiber carries the second portion of the laser signal and the returned modified optical signal. A receiver box receives the first laser signal portion, shifts the frequency of the first laser signal portion outputs the modified optical signal, and outputs an electrical signal on the basis of the laser signal. A detector at the end of the second optical fiber outputs a signal based on the modified optical signal. An optical delay sensing circuit outputs a data signal based on the detected modified optical signal. An rf phase detect and correct signal circuit outputs a signal corresponding to a phase stabilized rf signal based on the data signal and the frequency received from the receiver box.

Wilcox, Russell; Doolittle, Lawrence; Huang, Gang

2012-09-18T23:59:59.000Z

39

Bottom head assembly  

DOE Patents [OSTI]

A bottom head dome assembly is described which includes, in one embodiment, a bottom head dome and a liner configured to be positioned proximate the bottom head dome. The bottom head dome has a plurality of openings extending there through. The liner also has a plurality of openings extending there through, and each liner opening aligns with a respective bottom head dome opening. A seal is formed, such as by welding, between the liner and the bottom head dome to resist entry of water between the liner and the bottom head dome at the edge of the liner. In the one embodiment, a plurality of stub tubes are secured to the liner. Each stub tube has a bore extending there through, and each stub tube bore is coaxially aligned with a respective liner opening. A seat portion is formed by each liner opening for receiving a portion of the respective stub tube. The assembly also includes a plurality of support shims positioned between the bottom head dome and the liner for supporting the liner. In one embodiment, each support shim includes a support stub having a bore there through, and each support stub bore aligns with a respective bottom head dome opening. 2 figs.

Fife, A.B.

1998-09-01T23:59:59.000Z

40

Single electron beam rf feedback free electron laser  

DOE Patents [OSTI]

A free electron laser system and electron beam system for a free electron laser which uses rf feedback to enhance efficiency are described. Rf energy is extracted from a single electron beam by decelerating cavities and energy is returned to accelerating cavities using rf returns, such as rf waveguides, rf feedthroughs, resonant feedthroughs, etc. This rf energy is added to rf klystron energy to reduce the required input energy and thereby enhance energy efficiency of the system.

Brau, C.A.; Stein, W.E.; Rockwood, S.D.

1981-02-11T23:59:59.000Z

Note: This page contains sample records for the topic "division head rf" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Physics division annual report - October 2000.  

SciTech Connect (OSTI)

This report summarizes the research performed in the past year in the Argonne Physics Division. The Division's programs include operation of ATLAS as a national heavy-ion user facility, nuclear structure and reaction research with beams of heavy ions, accelerator research and development especially in superconducting radio frequency technology, nuclear theory and medium energy nuclear physics. The Division took significant strides forward in its science and its initiatives for the future in the past year. Major progress was made in developing the concept and the technology for the future advanced facility of beams of short-lived nuclei, the Rare Isotope Accelerator. The scientific program capitalized on important instrumentation initiatives with key advances in nuclear science. In 1999, the nuclear science community adopted the Argonne concept for a multi-beam superconducting linear accelerator driver as the design of choice for the next major facility in the field a Rare Isotope Accelerator (RIA) as recommended by the Nuclear Science Advisory Committee's 1996 Long Range Plan. Argonne has made significant R&D progress on almost all aspects of the design concept including the fast gas catcher (to allow fast fragmentation beams to be stopped and reaccelerated) that in large part, defined the RIA concept the superconducting rf technology for the driver accelerator, the multiple-charge-state concept (to permit the facility to meet the design intensity goals with existing ion-source technology), and designs and tests of high-power target concepts to effectively deal with the full beam power of the driver linac. An NSAC subcommittee recommended the Argonne concept and set as tie design goal Uranium beams of 100-kwatt power at 400 MeV/u. Argonne demonstrated that this goal can be met with an innovative, but technically in-hand, design.

Thayer, K. [ed.

2000-10-16T23:59:59.000Z

42

Solid State Division  

SciTech Connect (OSTI)

This report contains brief discussions on work done in the Solid State Division of Oak Ridge National Laboratory. The topics covered are: Theoretical Solid State Physics; Neutron scattering; Physical properties of materials; The synthesis and characterization of materials; Ion beam and laser processing; and Structure of solids and surfaces. (LSP)

Green, P.H.; Watson, D.M. (eds.)

1989-08-01T23:59:59.000Z

43

Superconducting Magnet Division  

E-Print Network [OSTI]

Superconducting Magnet Division MAGNETIC DESIGN OF E-LENS SOLENOID AND CORRECTOR SYSTEM FOR RHIC* R Slotted Dipole Corrector Design · Slots are machined in an Al tube where superconducting wires are placed between superconducting and copper solenoid with superconducting solenoid at 6T · The desired field (>0

Ohta, Shigemi

44

Chemistry Division Department of Biological  

E-Print Network [OSTI]

1 Chemistry Division Department of Biological and Chemical Sciences, Illinois Institute-13 Chemistry Division invites nominations for Kilpatrick Fellowship for the academic year 2012's Chemistry Department from 1947­1960. Mary Kilpatrick was a chemistry faculty member from 1947

Heller, Barbara

45

Environment, Health & Safety Division 31 July, 2009  

E-Print Network [OSTI]

Environment, Health & Safety Division 31 July, 2009 MEMORANDUM To: Division Safety Coordinators Division Liaisons All JHA Users From: John Seabury Environment, Health & Safety Division Subject: Job Hazard Analysis ­ Description of Work Rev 5 Discussion, Requirements, Helpful Hints and Examples

46

RF/optical shared aperture for high availability wideband communication RF/FSO links  

DOE Patents [OSTI]

An RF/Optical shared aperture is capable of transmitting and receiving optical signals and RF signals simultaneously. This technology enables compact wide bandwidth communications systems with 100% availability in clear air turbulence, rain and fog. The functions of an optical telescope and an RF reflector antenna are combined into a single compact package by installing an RF feed at either of the focal points of a modified Gregorian telescope.

Ruggiero, Anthony J; Pao, Hsueh-yuan; Sargis, Paul

2014-04-29T23:59:59.000Z

47

Computer, Computational, and Statistical Sciences Division  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Computing CCS Division Computer, Computational, and Statistical Sciences Division Computational physics, computer science, applied mathematics, statistics and the integration of...

48

RF power recovery feedback circulator  

DOE Patents [OSTI]

A device and method for improving the efficiency of RF systems having a Reflective Load. In the preferred embodiment, Reflected Energy from a superconducting resonator of a particle accelerator is reintroduced to the resonator after the phase of the Reflected Energy is aligned with the phase of the Supply Energy from a RF Energy Source. In one embodiment, a Circulator is used to transfer Reflected Energy from the Reflective Load into a Phase Adjuster which aligns the phase of the Reflected Energy with that of the Supply Energy. The phase-aligned energy is then combined with the Supply Energy, and reintroduced into the Reflective Load. In systems having a constant phase shift, the Phase Adjuster may be designed to shift the phase of the Reflected Energy by a constant amount using a Phase Shifter. In systems having a variety (variable) phase shifts, a Phase Shifter controlled by a phase feedback loop comprising a Phase Detector and a Feedback Controller to account for the various phase shifts is preferable.

Sharamentov, Sergey I. (Bolingbrook, IL)

2011-03-29T23:59:59.000Z

49

Maneuvering impact boring head  

DOE Patents [OSTI]

An impact boring head may comprise a main body having an internal cavity with a front end and a rear end. A striker having a head end and a tail end is slidably mounted in the internal cavity of the main body so that the striker can be reciprocated between a forward position and an aft position in response to hydraulic pressure. A compressible gas contained in the internal cavity between the head end of the striker and the front end of the internal cavity returns the striker to the aft position upon removal of the hydraulic pressure.

Zollinger, W. Thor (Idaho Falls, ID); Reutzel, Edward W. (Idaho Falls, ID)

1998-01-01T23:59:59.000Z

50

Maneuvering impact boring head  

DOE Patents [OSTI]

An impact boring head may comprise a main body having an internal cavity with a front end and a rear end. A striker having a head end and a tail end is slidably mounted in the internal cavity of the main body so that the striker can be reciprocated between a forward position and an aft position in response to hydraulic pressure. A compressible gas contained in the internal cavity between the head end of the striker and the front end of the internal cavity returns the striker to the aft position upon removal of the hydraulic pressure. 8 figs.

Zollinger, W.T.; Reutzel, E.W.

1998-08-18T23:59:59.000Z

51

Physics division annual report 1999  

SciTech Connect (OSTI)

This report summarizes the research performed in the past year in the Argonne Physics Division. The Division's programs include operation of ATLAS as a national heavy-ion user facility, nuclear structure and reaction research with beams of heavy ions, accelerator research and development especially in superconducting radio frequency technology, nuclear theory and medium energy nuclear physics. The Division took significant strides forward in its science and its initiatives for the future in the past year. Major progress was made in developing the concept and the technology for the future advanced facility of beams of short-lived nuclei, the Rare Isotope Accelerator. The scientific program capitalized on important instrumentation initiatives with key advances in nuclear science. In 1999, the nuclear science community adopted the Argonne concept for a multi-beam superconducting linear accelerator driver as the design of choice for the next major facility in the field a Rare Isotope Accelerator (WA) as recommended by the Nuclear Science Advisory Committee's 1996 Long Range Plan. Argonne has made significant R&D progress on almost all aspects of the design concept including the fast gas catcher (to allow fast fragmentation beams to be stopped and reaccelerated) that in large part defined the RIA concept the superconducting rf technology for the driver accelerator, the multiple-charge-state concept (to permit the facility to meet the design intensity goals with existing ion-source technology), and designs and tests of high-power target concepts to effectively deal with the full beam power of the driver linac. An NSAC subcommittee recommended the Argonne concept and set as tie design goal Uranium beams of 100-kwatt power at 400 MeV/u. Argonne demonstrated that this goal can be met with an innovative, but technically in-hand, design. The heavy-ion research program focused on GammaSphere, the premier facility for nuclear structure gamma-ray studies. One example of the ground-breaking research with Garnmasphere was the first study of the limits of stability with angular momentum in the shell stabilized nobelium isotopes. It was found that these heaviest nuclei could be formed at surprisingly high angular momentum, providing important new insight into the production mechanisms for super-heavy elements. Another focus continues to be experiments with short-lived beams for critical nuclear astrophysics applications. Measurements revealed that {sup 44}Ti is more readily destroyed in supernovae than was expected. Major progress was made in collecting and storing unstable ions in the Canadian Penning Trap. The technique of stopping and rapidly extracting ions from a helium gas cell led directly to the new paradigm in the production of rare isotope beams that became RIA. ATLAS provided a record 6046 hours of beam use for experiments in FY99. The facility pressed hard to support the heavy demands of the GammaSphere Research program but maintained an operational reliability of 93%. Of the 29 different isotopes provided as beams in FY99, radioactive beams of {sup 44}Ti and {sup 17}F comprised 6% of the beam time. The theoretical efforts in the Division made dramatic new strides in such topics as quantum Monte Carlo calculations of light nuclei to understand microscopic many-body forces in nuclei; QCD calculations based on the Dyson-Schwinger approach which were extended to baryon systems and finite temperatures and densities; the structure of heavy nuclei; and proton decay modes of nuclei far from stability. The medium-energy program continues to focus on new techniques to understand how the quark-gluon structure of matter impacts the structure of nuclei. The HERMES experiment began making measurements of the fraction of the spin of the nucleon carried by the glue. Drell-Yan experiments study the flavor composition of the sea of the proton. Experiments at Jefferson lab search for clues of QCD dynamics at the hadronic level. A major advance in trace isotope analysis was realized with pioneering work on Atom Trap Trace Analysis, exploitin

Thayer, K., ed.; Physics

2000-12-06T23:59:59.000Z

52

from the Head  

E-Print Network [OSTI]

as well as the many weekly seminars and colloquia, continually ... from the Head ... Meyer Jerison) received the 2009 George David Birkhoff Prize. The prize is ..... Virginia Mashin Scholars ... Alan Legg, Mariana Smit Vega Garcia, Lloyd West.

Sally Goeke

2009-07-14T23:59:59.000Z

53

Robust Diamond-Based RF Switch Yields Enhanced Communication...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Robust Diamond-Based RF Switch Yields Enhanced Communication Capabilities Technology available for licesning: A radio frequency (RF) microelectromechanical system (MEMS) switch...

54

Division Student Liaisons  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed Newcatalyst phasesDataTranslocationDiurnal Cycle of Convection atDiversityDivision

55

Engineering Division Superconducting  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing Zirconia NanoparticlesSmart GrocerDepartment& Engineering Division

56

Matching network for RF plasma source  

DOE Patents [OSTI]

A compact matching network couples an RF power supply to an RF antenna in a plasma generator. The simple and compact impedance matching network matches the plasma load to the impedance of a coaxial transmission line and the output impedance of an RF amplifier at radio frequencies. The matching network is formed of a resonantly tuned circuit formed of a variable capacitor and an inductor in a series resonance configuration, and a ferrite core transformer coupled to the resonantly tuned circuit. This matching network is compact enough to fit in existing compact focused ion beam systems.

Pickard, Daniel S. (Palo Alto, CA); Leung, Ka-Ngo (Hercules, CA)

2007-11-20T23:59:59.000Z

57

Systems Division NO. REV. NO.  

E-Print Network [OSTI]

Aerospace Systems Division NO. REV. NO. EATM-17 PCU - SOLAR PANEL SIMULATOR TEST REPORT:' Courtois ~ll~K. Hsi #12;MO. REV. MO. EATM-17 ~ Systems Division PCU - Solar Panel Simulator Test Report Conditioning Unit (PCU) is compatible with a solar panel array. The Solar Panel Simulator and the PCU Test Set

Rathbun, Julie A.

58

Superconducting Magnet Division Mike Harrison  

E-Print Network [OSTI]

Superconducting Magnet Division Mike Harrison The LARP Dipole R&D Program - D1 only Design (high beta lattice location) · Beam heating (first active element from the IP) #12;Superconducting aperture Field quality Issues not (well ?) understood #12;Superconducting Magnet Division Mike Harrison

Large Hadron Collider Program

59

Samsung: ENERGY STAR Referral (RF26VAB)  

Broader source: Energy.gov [DOE]

DOE referred the matter of Samsung refrigerator-freezer model RF26VAB to the EPA for appropriate action after DOE testing showed that the model does not meet the ENERGY STAR specification.

60

Si-based RF MEMS components.  

SciTech Connect (OSTI)

Radio frequency microelectromechanical systems (RF MEMS) are an enabling technology for next-generation communications and radar systems in both military and commercial sectors. RF MEMS-based reconfigurable circuits outperform solid-state circuits in terms of insertion loss, linearity, and static power consumption and are advantageous in applications where high signal power and nanosecond switching speeds are not required. We have demonstrated a number of RF MEMS switches on high-resistivity silicon (high-R Si) that were fabricated by leveraging the volume manufacturing processes available in the Microelectronics Development Laboratory (MDL), a Class-1, radiation-hardened CMOS manufacturing facility. We describe novel tungsten and aluminum-based processes, and present results of switches developed in each of these processes. Series and shunt ohmic switches and shunt capacitive switches were successfully demonstrated. The implications of fabricating on high-R Si and suggested future directions for developing low-loss RF MEMS-based circuits are also discussed.

Stevens, James E.; Nordquist, Christopher Daniel; Baker, Michael Sean; Fleming, James Grant; Stewart, Harold D.; Dyck, Christopher William

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "division head rf" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Deeply scaled CMOS for RF power applications  

E-Print Network [OSTI]

The microelectronics industry is striving to reduce the cost, complexity, and form factor of wireless systems through single-chip integration of analog, RF and digital functions. Driven by the requirements of the digital ...

Scholvin, Jrg, 1976-

2006-01-01T23:59:59.000Z

62

EXPERIMENTAL STUDIES OF RF BREAKDOWNS IN THE COUPLER OF THE TTF RF GUN  

E-Print Network [OSTI]

to han- dle 800 µs long RF pulses with 4.5 MW of peak power and at 10 Hz repetition rate. In this regime

63

Reactor pressure vessel vented head  

DOE Patents [OSTI]

A head for closing a nuclear reactor pressure vessel shell includes an arcuate dome having an integral head flange which includes a mating surface for sealingly mating with the shell upon assembly therewith. The head flange includes an internal passage extending therethrough with a first port being disposed on the head mating surface. A vent line includes a proximal end disposed in flow communication with the head internal passage, and a distal end disposed in flow communication with the inside of the dome for channeling a fluid therethrough. The vent line is fixedly joined to the dome and is carried therewith when the head is assembled to and disassembled from the shell.

Sawabe, James K. (San Jose, CA)

1994-01-11T23:59:59.000Z

64

Materials Science & Tech Division | Advanced Materials | ORNL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Materials Science and Technology SHARE Materials Science and Technology Division The Materials Science and Technology Division is unique within the Department of Energy (DOE)...

65

ENERGY & ENVIRONMENT DIVISION ANNUAL REPORT 1979  

E-Print Network [OSTI]

Population Impacts of Geothermal Energy Development in thethe DOE Division of Geothermal Energy. S. L. Phillips and E.to DOE Division of Geothermal Energy, January 30, 1980.

Cairns, E.J.

2010-01-01T23:59:59.000Z

66

EARTH SCIENCES DIVISION ANNUAL REPORT 1978  

E-Print Network [OSTI]

of Energy's Division of Geothermal Energy has undertaken aand Ghormley, E. L. , 1976. Geothermal energy conversion andof the Division of Geothermal Energy, and is compatible with

Authors, Various

2012-01-01T23:59:59.000Z

67

Physics division annual report 2006.  

SciTech Connect (OSTI)

This report highlights the activities of the Physics Division of Argonne National Laboratory in 2006. The Division's programs include the operation as a national user facility of ATLAS, the Argonne Tandem Linear Accelerator System, research in nuclear structure and reactions, nuclear astrophysics, nuclear theory, investigations in medium-energy nuclear physics as well as research and development in accelerator technology. The mission of nuclear physics is to understand the origin, evolution and structure of baryonic matter in the universe--the core of matter, the fuel of stars, and the basic constituent of life itself. The Division's research focuses on innovative new ways to address this mission.

Glover, J.; Physics

2008-02-28T23:59:59.000Z

68

Energy Division annual progress report for period ending September 30, 1981  

SciTech Connect (OSTI)

This eighth annual report of the Division covers work done during FY 1981 (October 1, 1980, through September 30, 1981). As with these documents in the past, the format follows approximately the organizational structure of the Energy Division. Chapters 2 through 6 summarize the activities of the sections of the Division: Environmental Impact Section, headed by H.E. Zittel; Regional and Urban Studies Section, R.M. Davis; Economic Analysis Section, R.B. Shelton; Data and Analysis Section, A.S. Loebl; and Efficiency and Renewables Research Section, J.W. Michel. In addition, work on a variety of projects which cut across section lines is reported in Chapter 7, Integrated Programs. These activities are under the supervision of T.J. Wilbanks, Associate Director for the Division. Separate abstracts are included for individual projects.

Not Available

1982-05-01T23:59:59.000Z

69

Physics Division computer facilities  

SciTech Connect (OSTI)

The Physics Division maintains several computer systems for data analysis, general-purpose computing, and word processing. While the VMS VAX clusters are still used, this past year saw a greater shift to the Unix Cluster with the addition of more RISC-based Unix workstations. The main Divisional VAX cluster which consists of two VAX 3300s configured as a dual-host system serves as boot nodes and disk servers to seven other satellite nodes consisting of two VAXstation 3200s, three VAXstation 3100 machines, a VAX-11/750, and a MicroVAX II. There are three 6250/1600 bpi 9-track tape drives, six 8-mm tapes and about 9.1 GB of disk storage served to the cluster by the various satellites. Also, two of the satellites (the MicroVAX and VAX-11/750) have DAPHNE front-end interfaces for data acquisition. Since the tape drives are accessible cluster-wide via a software package, they are, in addition to replay, used for tape-to-tape copies. There is however, a satellite node outfitted with two 8 mm drives available for this purpose. Although not part of the main cluster, a DEC 3000 Alpha machine obtained for data acquisition is also available for data replay. In one case, users reported a performance increase by a factor of 10 when using this machine.

Cyborski, D.R.; Teh, K.M.

1995-08-01T23:59:59.000Z

70

DIVISION 16 -ELECTRICAL 16000 GENERAL  

E-Print Network [OSTI]

Electrical Code American National Standards Institute National Electrical Manufacturers Association Institute of Electrical & Electronics Engineers Insulated Cable Engineers Association 3. Three copies of the followingDIVISION 16 - ELECTRICAL _____________________________________________________________ 16000

71

Division 1137 property control system  

SciTech Connect (OSTI)

An automated data processing property control system was developed by Mobile and Remote Range Division 1137. This report describes the operation of the system and examines ways of using it in operational planning and control.

Pastor, D.J.

1982-01-01T23:59:59.000Z

72

RF BREAKDOWN STUDIES USING PRESSURIZED CAVITIES  

SciTech Connect (OSTI)

Many present and future particle accelerators are limited by the maximum electric gradient and peak surface fields that can be realized in RF cavities. Despite considerable effort, a comprehensive theory of RF breakdown has not been achieved and mitigation techniques to improve practical maximum accelerating gradients have had only limited success. Part of the problem is that RF breakdown in an evacuated cavity involves a complex mixture of effects, which include the geometry, metallurgy, and surface preparation of the accelerating structures and the make-up and pressure of the residual gas in which plasmas form. Studies showed that high gradients can be achieved quickly in 805 MHz RF cavities pressurized with dense hydrogen gas, as needed for muon cooling channels, without the need for long conditioning times, even in the presence of strong external magnetic fields. This positive result was expected because the dense gas can practically eliminate dark currents and multipacting. In this project we used this high pressure technique to suppress effects of residual vacuum and geometry that are found in evacuated cavities in order to isolate and study the role of the metallic surfaces in RF cavity breakdown as a function of magnetic field, frequency, and surface preparation. One of the interesting and useful outcomes of this project was the unanticipated collaborations with LANL and Fermilab that led to new insights as to the operation of evacuated normal-conducting RF cavities in high external magnetic fields. Other accomplishments included: (1) RF breakdown experiments to test the effects of SF6 dopant in H2 and He gases with Sn, Al, and Cu electrodes were carried out in an 805 MHz cavity and compared to calculations and computer simulations. The heavy corrosion caused by the SF6 components led to the suggestion that a small admixture of oxygen, instead of SF6, to the hydrogen would allow the same advantages without the corrosion in a practical muon beam line. (2) A 1.3 GHz RF test cell capable of operating both at high pressure and in vacuum with replaceable electrodes was designed, built, and power tested in preparation for testing the frequency and geometry effects of RF breakdown at Argonne National Lab. At the time of this report this cavity is still waiting for the 1.3 GHz klystron to be available at the Wakefield Test Facility. (3) Under a contract with Los Alamos National Lab, an 805 MHz RF test cavity, known as the All-Seasons Cavity (ASC), was designed and built by Muons, Inc. to operate either at high pressure or under vacuum. The LANL project to use the (ASC) was cancelled and the testing of the cavity has been continued under the grant reported on here using the Fermilab Mucool Test Area (MTA). The ASC is a true pillbox cavity that has performed under vacuum in high external magnetic field better than any other and has demonstrated that the high required accelerating gradients for many muon cooling beam line designs are possible. (4) Under ongoing support from the Muon Acceleration Program, microscopic surface analysis and computer simulations have been used to develop models of RF breakdown that apply to both pressurized and vacuum cavities. The understanding of RF breakdown will lead to better designs of RF cavities for many applications. An increase in the operating accelerating gradient, improved reliability and shorter conditioning times can generate very significant cost savings in many accelerator projects.

Johnson, Rolland

2014-09-21T23:59:59.000Z

73

Wideband high efficiency CMOS envelope amplifiers for 4G LTE handset envelope tracking RF power amplifiers  

E-Print Network [OSTI]

RF power amplifier applications," IEEE Journal of Solid-RF power amplifier applications," IEEE Journal of Solid-RF power amplifier applications," IEEE Journal of Solid-

Hassan, Muhammad

2012-01-01T23:59:59.000Z

74

Lawrence Berkeley National Laboratory Engineering Division Office  

E-Print Network [OSTI]

/4867399 DMAttia@lbl.gov Administrative Staff Glenda Fish Division Office Administrator 510/4867123 GJFish

75

Nuclear Engineering Division Think, explore, discover, innovate  

E-Print Network [OSTI]

Nuclear Engineering Division Think, explore, discover, innovate Never miss important updates managed by UChicago Argonne, LLC 1 Nuclear Engineering Division: Awards Listing (1980 ­ present) Web: http Division of Educational Programs J.C. Braun L.W. Deitrich #12;Nuclear Engineering Division Think, explore

Kemner, Ken

76

X-Band RF Gun Development  

SciTech Connect (OSTI)

In support of the MEGa-ray program at LLNL and the High Gradient research program at SLAC, a new X-band multi-cell RF gun is being developed. This gun, similar to earlier guns developed at SLAC for Compton X-ray source program, will be a standing wave structure made of 5.5 cells operating in the pi mode with copper cathode. This gun was designed following criteria used to build SLAC X-band high gradient accelerating structures. It is anticipated that this gun will operate with surface electric fields on the cathode of 200 MeV/m with low breakdown rate. RF will be coupled into the structure through a final cell with symmetric duel feeds and with a shape optimized to minimize quadrupole field components. In addition, geometry changes to the original gun, operated with Compton X-ray source, will include a wider RF mode separation, reduced surface electric and magnetic fields.

Vlieks, Arnold; Dolgashev, Valery; Tantawi, Sami; /SLAC; Anderson, Scott; Hartemann, Fred; Marsh, Roark; /LLNL, Livermore

2012-06-22T23:59:59.000Z

77

BROOKHAVEN NATIONAL LABORATORY INSTRUMENTATION DIVISION, R AND D PROGRAMS, FACILITIES, STAFF.  

SciTech Connect (OSTI)

To develop state-of-the-art instrumentation required for experimental research programs at BNL, and to maintain the expertise and facilities in specialized high technology areas essential for this work. Development of facilities is motivated by present BNL research programs and anticipated future directions of BNL research. The Division's research efforts also have a significant impact on programs throughout the world that rely on state-of-the-art radiation detectors and readout electronics. Our staff scientists are encouraged to: Become involved in challenging problems in collaborations with other scientists; Offer unique expertise in solving problems; and Develop new devices and instruments when not commercially available. Scientists from other BNL Departments are encouraged to bring problems and ideas directly to the Division staff members with the appropriate expertise. Division staff is encouraged to become involved with research problems in other Departments to advance the application of new ideas in instrumentation. The Division Head integrates these efforts when they evolve into larger projects, within available staff and budget resources, and defines the priorities and direction with concurrence of appropriate Laboratory program leaders. The Division Head also ensures that these efforts are accompanied by strict adherence to all ES and H regulatory mandates and policies of the Laboratory. The responsibility for safety and environmental protection is integrated with supervision of particular facilities and conduct of operations.

INSTRUMENTATION DIVISION STAFF

1999-06-01T23:59:59.000Z

78

analog rf gap: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

LHC, particles not captured by the RF system at injection or leaking out of the RF bucket may quench the superconducting magnets during beam abort. The problem, common to other...

79

Novel rf mems tunable filters with adjustable spurious suppression  

E-Print Network [OSTI]

This thesis presents the theory and design of fixed and Radio Frequency (RF) Microelectromechanical Systems (MEMS) -based tunable microwave filters for RF and microwave applications. The methodology for the design of coupled resonator filters...

Sekar, Vikram

2009-05-15T23:59:59.000Z

80

A day in the life of the RF spectrum  

E-Print Network [OSTI]

There is a misguided perception that RF spectrum space is fully allocated and fully used though even a superficial study of actual spectrum usage by measuring local RF energy shows it largely empty of radiation. Traditional ...

Cooley, James E. (James Edward)

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "division head rf" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Design and fabrication of an RF power LDMOSFET on SOI  

E-Print Network [OSTI]

This thesis studied thin-film Silicon-on-Insulator (SOI) LDMOSFET technology for RF power amplifier applications. To conduct this study, two generations of SOI RF power devices for portable wireless systems were designed ...

Fiorenza, James G. (James George), 1972-

2002-01-01T23:59:59.000Z

82

Advanced RF power sources for linacs  

SciTech Connect (OSTI)

In order to maintain a reasonable over-all length at high center-of-mass energy, the main linac of an electron-positron linear collider must operate at a high accelerating gradient. For copper (non-superconducting) accelerator structures, this implies a high peak power per unit length and a high peak power per RF source, assuming a limited number of discrete sources are used. To provide this power, a number of devices are currently under active development or conceptual consideration: conventional klystrons with multi-cavity output structures, gyroklystrons, magnicons, sheet-beam klystrons, multiple-beam klystrons and amplifiers based on the FEL principle. To enhance the peak power produced by an rf source, the SLED rf pulse compression scheme is currently in use on existing linacs, and new compression methods that produce a flatter output pulse are being considered for future linear colliders. This paper covers the present status and future outlook for the more important rf power sources and pulse compression systems. It should be noted that high gradient electron linacs have applications in addition to high-energy linear colliders; they can, for example, serve as compact injectors for FEL`s and storage rings.

Wilson, P.B.

1996-10-01T23:59:59.000Z

83

Configurations for short period rf undulators  

DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

Several configurations for rf undulators energized at millimeter wavelengths and designed to produce coherent nanometer radiation from sub-GeV electron beams are analyzed and compared with one another. These configurations include a traveling-wave resonant ring, a standing wave resonator, and a resonator operating close to cutoff.

Kuzikov, S. V.; Jiang, Y.; Marshall, T. C.; Sotnikov, G. V.; Hirshfield, J. L.

2013-07-01T23:59:59.000Z

84

Cw rf operation of the FMIT RFQ  

SciTech Connect (OSTI)

The 80-MHz RFQ for the Fusion Materials Irradiation Test Facility prototype accelerator has been rf conditioned for cw operation to the design field level of 17.5 MV/m (1.68 x Kilpatrick limit). Experimental results and operating experience will be discussed.

Fazio, M.V.; Brandeberry, F.E.

1985-01-01T23:59:59.000Z

85

Emittance control in rf cavities and solenoids  

E-Print Network [OSTI]

We study emittance growth for transport of uniform and Gaussian beams of particles in rf cavities and solenoids and show analytically its dependence on initial beam parameters. Analytical results are confirmed with simulation studies over a broad range of different initial beams.

Eshraqi, Mohammad; Lombardi, Alessandra M

2009-01-01T23:59:59.000Z

86

Reactor pressure vessel vented head  

DOE Patents [OSTI]

A head for closing a nuclear reactor pressure vessel shell includes an arcuate dome having an integral head flange which includes a mating surface for sealingly mating with the shell upon assembly therewith. The head flange includes an internal passage extending therethrough with a first port being disposed on the head mating surface. A vent line includes a proximal end disposed in flow communication with the head internal passage, and a distal end disposed in flow communication with the inside of the dome for channeling a fluid therethrough. The vent line is fixedly joined to the dome and is carried therewith when the head is assembled to and disassembled from the shell. 6 figures.

Sawabe, J.K.

1994-01-11T23:59:59.000Z

87

Computational Sciences and Engineering Division | ornl.gov  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Computational Sciences and Engineering Division SHARE Computational Sciences and Engineering Division The Computational Sciences and Engineering Division is a major research...

88

Computer Sciences and Mathematics Division | ornl.gov  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Computer Sciences and Mathematics Division SHARE Computer Sciences and Mathematics Division The Computer Science and Mathematics Division (CSMD) is ORNL's premier source of basic...

89

Environmental Transport Division: 1979 report  

SciTech Connect (OSTI)

During 1979, the Environmental Transport Division (ETD) of the Savannah River Laboratory conducted atmospheric, terrestrial, aquatic, and marine studies, which are described in a series of articles. Separate abstracts were prepared for each. Publications written about the 1979 research are listed at the end of the report.

Murphy, C.E. Jr.; Schubert, J.F.; Bowman, W.W.; Adams, S.E.

1980-03-01T23:59:59.000Z

90

Education Strategy Team Policy Division  

E-Print Network [OSTI]

Education Strategy Team Policy Division DFID 1 Palace Street London SW1E 5HE 30 October 2009 TEL fellowships in India under the Wellcome Trust/DBT India Alliance2 . We believe that such investment is vital/Global-health-research/WTX055734.htm 2 Wellcome Trust/DBT India Alliance: http://www.wellcomedbt.org/index.htm #12;to support

Rambaut, Andrew

91

Publishing Division The Edinburgh Building  

E-Print Network [OSTI]

Publishing Division The Edinburgh Building Shaftesbury Road Cambridge CB2 2RU, UK TELEPHONE 01223 Building, Cambridge CB2 2RU, UK 40 West 20th Street, New York NY 10011-4211, USA 477 Williamstown Road Record [1] walter carl hartwig 2 The origin of primates [5] david tab rasmussen The earliest primates

Rosenberger, Alfred H.

92

Role Profile Head of School  

E-Print Network [OSTI]

Role Profile Head of School Purpose of the Role The Head of School is accountable for:- · The provision of academic leadership, developing and delivering School objectives for, in particular, teaching, · The effective governance and management of the School and all of its resources. Context of the Role

Edinburgh, University of

93

DIVISION 6 -WOOD AND PLASTICS 06000 GENERAL  

E-Print Network [OSTI]

DIVISION 6 - WOOD AND PLASTICS ________________________________________________________________________ 06000 GENERAL 1. For both woods and plastics, special attention is called to matters of flame spread-dried. 3. For exterior wood or plastic framed structures, see Division 4 for dimensions of Sample Panel

94

Wildlife conservation education efforts by Information and Education (I&E) divisions  

E-Print Network [OSTI]

) Wende Swank (Member) 3LI , J hn K. Thomas (Member) Da id Schmidly (Department Head) December 1987 ABSTRACT Wildlife Conservation Education Efforts by Information and Education Divisions (I&E) (December 1987) Richard Alan Stone, B. S.... John K. Thomas in the construction and interpretation of the survey. Not to be forgotten are the survey respondents whose time spent on the surv ey and patience with me on the phone proves that there are commited individuals in conserv ation...

Stone, Richard Alan

1987-01-01T23:59:59.000Z

95

Bear Head LNG Corporation and Bear Head LNG (USA), LLC - FE Dkt...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Bear Head LNG Corporation and Bear Head LNG (USA), LLC - FE Dkt. No. - 15-33-LNG Bear Head LNG Corporation and Bear Head LNG (USA), LLC - FE Dkt. No. - 15-33-LNG The Office of...

96

Westinghouse Advanced Reactors Division Plutonium Fuel Laboratories  

Office of Legacy Management (LM)

Radiological Condition of the Westinghouse Advanced Reactors Division Plutonium Fuel Laboratories Cheswick, Pennsylvania -. -, -- AGENCY: Office of Operational Safety, Department...

97

RUGGED CERAMIC WINDOW FOR RF APPLICATIONS  

SciTech Connect (OSTI)

High-current RF cavities that are needed for many accelerator applications are often limited by the power transmission capability of the pressure barriers (windows) that separate the cavity from the power source. Most efforts to improve RF window design have focused on alumina ceramic, the most popular historical choice, and have not taken advantage of new materials. Alternative window materials have been investigated using a novel Merit Factor comparison and likely candidates have been tested for the material properties which will enable construction in the self-matched window configuration. Window assemblies have also been modeled and fabricated using compressed window techniques which have proven to increase the power handling capability of waveguide windows. Candidate materials have been chosen to be used in fabricating a window for high power testing at Thomas Jefferson National Accelerator Facility.

MIKE NEUBAUER

2012-11-01T23:59:59.000Z

98

An Efficient RF Source for Jlab  

SciTech Connect (OSTI)

We propose the development of a highly reliable high efficiency RF source for JLAB with a lower lifetime cost operating at 80% efficiency with system operating costs of about 0.7M$/year for the 6 GeV machine. The design of the RF source will be based upon two injection locked magnetrons in a novel combining architecture for amplitude modulation and a cross field amplifier (CFA) as an output tube for the 12 GeV upgrade. A cost analysis including efficiency and reliability will be performed to determine the optimum system architecture. Several different system architectures will be designed and evaluated for a dual injection locked magnetron source using novel combining techniques and possibly a CFA as the output tube. A paper design for the 1497 MHz magnetron system will be completed. The optimum system architecture with all relevant specifications will be completed so that a prototype can be built.

Neubauer, M. [Muons, Inc.; Dudas, A. [Muons, Inc.; Rimmer, Robert A. [JLAB; Wang, Haipeng [JLAB

2013-12-01T23:59:59.000Z

99

ILC RF System R and D  

SciTech Connect (OSTI)

The Linac Group at SLAC is actively pursuing a broad range of R&D to improve the reliability and reduce the cost of the L-band (1.3 GHz) rf system proposed for the ILC linacs. Current activities include the long-term evaluation of a 120 kV Marx Modulator driving a 10 MW Multi-Beam Klystron, design of a second-generation Marx Modulator, testing of a sheet-beam gun and beam transport system for a klystron, construction of an rf distribution system with remotely-adjustable power tapoffs, and development of a system to combine the power from many klystrons in low-loss circular waveguide where it would be tapped-off periodically to power groups of cavities. This paper surveys progress during the past few years.

Adolphsen, Chris; /SLAC

2012-07-03T23:59:59.000Z

100

The new RF sources for accelerators  

SciTech Connect (OSTI)

Several new RF sources are being developed for accelerator and collider applications. Assembly is nearing completion of a multiple beam inductive output tube at 352 MHz. An annular beam klystron is being developed to produce 10 MW pulses at 1.3 GHz. The annular beam approach provides significant cost reduction over similar multiple beam devices. Fabrication is underway on a 10 kW, periodic permanent magnet klystron at 2.815 GHz. Permanent magnets eliminate the solenoid and associated power supplies and cooling requirements to reduce operational cost. Investigations are beginning on a novel approach for driving accelerator cavities using pulse shaping to increase coupling efficiency and dramatically reduce RF power requirements.

Ives, Lawrence; Read, Michael; Ferguson, Patrick; Marsden, David; Collins, George; Jackson, R. H.; Bui, Thuc; Kimura, Takuji; Eisen, Edward [Calabazas Creek Research, Inc., 690 Port Drive, San Mateo, CA, 94404, (650) 312-9575 (United States); Communications and Power Industries, LLC., 811 Hansen Way, Palo Alto, CA94304 (United States)

2012-12-21T23:59:59.000Z

Note: This page contains sample records for the topic "division head rf" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

EARTH SCIENCES Lower-Division Requirements  

E-Print Network [OSTI]

2012-2013 EARTH SCIENCES Lower-Division Requirements Math 20A_____ 20B_____ 20C_____ 20D (BILD 3) _____ SIO 50* _____ Group A: Earth Science Upper-Division Core Requirements (all courses _____ Introduction to Geophysics SIO 104 _____ Paleobiology and History of Life* Group B: Upper-Division Earth

Constable, Steve

102

Finance Division EXTRA MILE AWARD PROGRAM  

E-Print Network [OSTI]

Finance Division EXTRA MILE AWARD PROGRAM Nomination Form Instructions Any fulltime or parttime permanent or temporary SPA employee within the Finance Division who works 20 or more provided. The seven major departments within the Finance Division to choose from are described below

Crews, Stephen

103

Analytical Chemistry Division's sample transaction system  

SciTech Connect (OSTI)

The Analytical Chemistry Division uses the DECsystem-10 computer for a wide range of tasks: sample management, timekeeping, quality assurance, and data calculation. This document describes the features and operating characteristics of many of the computer programs used by the Division. The descriptions are divided into chapters which cover all of the information about one aspect of the Analytical Chemistry Division's computer processing.

Stanton, J.S.; Tilson, P.A.

1980-10-01T23:59:59.000Z

104

The Division of Biology & Biomedical Sciences  

E-Print Network [OSTI]

The Division of Biology & Biomedical Sciences what will YOU discover? #12;620students more than 470faculty 36departments 12programs and one YOU. DBBS Division of Biology and Biomedical Sciences Washington. The Division of Biology and Biomedical Sciences (DBBS) is ideally positioned to foster the interdisciplinary

Kornfeld, S. Kerry

105

Radio frequency (RF) heated supersonic flow laboratory  

SciTech Connect (OSTI)

A unique supersonic flow apparatus which employs an inductively-coupled, radio frequency (RF) torch to supply high enthalpy source gas to the nozzle inlet is described. The main features of this system are the plasma tube, a cooled nozzle assembly, and a combustion/expansion chamber with a heat exchanger. A description of these components with current test data is presented. In addition, a discussion of anticipated experiments utilizing this system is included.

Wantuck, P.; Watanabe, H.

1990-01-01T23:59:59.000Z

106

RF Micro Devices | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to: navigation, search RAPIDColoradosource History View New PagesElectron srlRF Micro Devices

107

RF Gun Photocathode Research at SLAC  

SciTech Connect (OSTI)

LCLS is presently operating with a third copper photocathode in the original rf gun, with a quantum efficiency (QE) of {approx}1 x 10{sup -4} and projected emittance {gamma}{var_epsilon}{sub x,y} = 0.45 {micro}m at 250 pC bunch charge. The spare LCLS gun is installed in the SLAC Accelerator Structure Test Area (ASTA), fully processed to high rf power. As part of a wider photocathode R and D program, a UV laser system and additional gun diagnostics are being installed at ASTA to measure QE, QE lifetime, and electron beam emittance under a variety of operating conditions. The near-term goals are to test and verify the spare photocathode production/installation sequence, including transfer from the final holding chamber to the rf gun. Mid- and longer-term goals include development of a rigorous understanding of plasma and laser-assisted surface conditioning and investigation of new, high-QE photocathode materials. In parallel, an x-ray photoemission spectroscopy station is nearing completion, to analyze Cu photocathode surface chemistry. In this paper we review the status and anticipated operating parameters of ASTA and the spectroscopy test chamber.

Jongewaard, E.; Akre, R.; Brachmann, A.; Corbett, J.; Gilevich, S.; Grouev, K.; Hering, P.; P.Krejcik,; Lewandowski, J.; Loos, H.; Montagne, T.; Sheppard, J.C.; Stefan, P.; Vlieks, A.; Weathersby, S.; Zhou, F.; /SLAC

2012-05-16T23:59:59.000Z

108

MATERIALS AND MOLECULAR RESEARCH DIVISION. ANNUAL REPORT 1980  

E-Print Network [OSTI]

of trans uranium organometallic chemistry, particularlyfor Uranium Isotope Separation," Chemistry Division, IsotopeOlander, "Uranium Enrichment by Laser," Chemistry Division,

Searcy, Alan W.

2010-01-01T23:59:59.000Z

109

analytical sciences division: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Division Environmental Management and Restoration Websites Summary: Chemical Sciences and Engineering Division Director Assoc Director Ops Assoc Director Science Yates...

110

Health, Safety, and Environment Division  

SciTech Connect (OSTI)

The primary responsibility of the Health, Safety, and Environmental (HSE) Division at the Los Alamos National Laboratory is to provide comprehensive occupational health and safety programs, waste processing, and environmental protection. These activities are designed to protect the worker, the public, and the environment. Meeting these responsibilities requires expertise in many disciplines, including radiation protection, industrial hygiene, safety, occupational medicine, environmental science and engineering, analytical chemistry, epidemiology, and waste management. New and challenging health, safety, and environmental problems occasionally arise from the diverse research and development work of the Laboratory, and research programs in HSE Division often stem from these applied needs. These programs continue but are also extended, as needed, to study specific problems for the Department of Energy. The results of these programs help develop better practices in occupational health and safety, radiation protection, and environmental science.

Wade, C [comp.] [comp.

1992-01-01T23:59:59.000Z

111

Design and Manufacture of the RF Power Supply and RF Transmission Line for SANAEM Project Prometheus  

E-Print Network [OSTI]

A 1-5 MeV proton beamline is being built by the Turkish Atomic Energy Authority in collaboration with a number of graduate students from different universities. The most important aspect of the project, is to acquire the design ability and manufacturing capability of all the components locally. SPP will be an accelerator and beam diagnostics test facility and it will also serve the detector development community with its low beam current. This paper discusses the design and construction of the RF power supply and the RF transmission line components such as its waveguide converters and its circulator.

Turemen, G; Unel, G; Alacakir, A

2015-01-01T23:59:59.000Z

112

Heater head for stirling engine  

DOE Patents [OSTI]

A monolithic heater head assembly which augments cast fins with ceramic inserts which narrow the flow of combustion gas and obtains high thermal effectiveness with the assembly including an improved flange design which gives greater durability and reduced conduction loss.

Corey, John A. (R.D. #2, Box 101 E, North Troy, NY 12182)

1985-07-09T23:59:59.000Z

113

Experimental Studies of Light Emission Phenomena in Superconducting RF Cavitites  

SciTech Connect (OSTI)

Experimental studies of light emission phenomena in superconducting RF cavities, which we categorize under the general heading of cavity lights, are described. The cavity lights data, which were obtained using a small CCD video camera, were collected in a series of nine experimental runs ranging from {approx} 1/2 to {approx} 2 h in duration. The video data were recorded on a standard VHS tape. As the runs progressed, additional instrumentation was added. For the last three runs a LabVIEW controlled data acquisition system was included. These runs furnish evidence for several, possibly related, light emission phenomena. The most intriguing of these is what appear to be small luminous objects {le} 1.5 mm in size, freely moving about in the vacuum space, generally without wall contact, as verified by reflections of the tracks in the cavity walls. In addition, on a number of occasions, these objects were observed to bounce off of the cavity walls. The wall-bounce aspect of most of these events was clearly confirmed by pre-bounce and post-bounce reflections concurrent with the tracks. In one of the later runs, a mode of behavior was observed that was qualitatively different from anything observed in the earlier runs. Perhaps the most perplexing aspect of this new mode was the observation of as many as seven luminous objects arrayed in what might be described as a macromolecular formation, coherently moving about in the interior of the cavity for extended periods of time, evidently without any wall contact. It is suggested that these mobile luminous objects are without explanation within the realm of established physics. Some remarks about more exotic theoretical possibilities are made, and future plans are discussed.

Anthony, P.L.; /SLAC; Delayen, J.R.; /Jefferson Lab; Fryberger, D.; /SLAC; Goree, W.S.; Mammosser, J.; /Jefferson Lab /SNS Project, Oak Ridge; Szalata, Z.M.; II, J.G.Weisend /SLAC

2009-08-04T23:59:59.000Z

114

A STATE VARIABLE DESCRIPTION OF THE RHIC RF CONTROL LOOPS.  

SciTech Connect (OSTI)

The beam transfer function changes during the RHIC ramp. The response of the RF control loops changes as a result. A state-variable description of the beam and the RF control loops was developed. This description was used to generate a set of feedback matrices that keeps the response of the RF control loops constant during the ramp. This paper describes the state-variable description and its use in determining the K matrices.

SCHULTHEISS,C.; BRENNAN,J.M.

2002-06-02T23:59:59.000Z

115

RF Gun cavities cooling regime study. K. Floettmann1  

E-Print Network [OSTI]

RF power of Pa 68kW corre- sponds to a heat load of 300kW m . To remove such a high heat value from of RF fields in the cavity at an operating frequency is calculated in the usual way. The temperature) with the boundary condition at the RF cavity surface: kc(ngradT) = Ps, (2) where kc = 391 W m·K is the heat

116

Multi-Physics Analysis of the Fermilab Booster RF Cavity  

SciTech Connect (OSTI)

After about 40 years of operation the RF accelerating cavities in Fermilab Booster need an upgrade to improve their reliability and to increase the repetition rate in order to support a future experimental program. An increase in the repetition rate from 7 to 15 Hz entails increasing the power dissipation in the RF cavities, their ferrite loaded tuners, and HOM dampers. The increased duty factor requires careful modelling for the RF heating effects in the cavity. A multi-physic analysis investigating both the RF and thermal properties of Booster cavity under various operating conditions is presented in this paper.

Awida, M.; Reid, J.; Yakovlev, V.; Lebedev, V.; Khabiboulline, T.; Champion, M.; /Fermilab

2012-05-14T23:59:59.000Z

117

Investigation of Microscopic Materials Limitations of Superconducting RF Cavities  

SciTech Connect (OSTI)

The high-field performance of SRF cavities is often limited by breakdown events below the intrinsic limiting surface fields of Nb, and there is abundant evidence that these breakdown events are localized in space inside the cavity. Also, there is a lack of detailed understanding of the causal links between surface treatments and ultimate RF performance at low temperatures. An understanding of these links would provide a clear roadmap for improvement of SRF cavity performance, and establish a cause-and-effect RF materials science of Nb. We propose two specific microscopic approaches to addressing these issues. First is a spatially-resolved local microwave-microscope probe that operates at SRF frequencies and temperatures to discover the microscopic origins of breakdown, and produce quantitative measurements of RF critical fields of coatings and films. Second, RF Laser Scanning Microscopy (LSM) has allowed visualization of RF current flow and sources of nonlinear RF response in superconducting devices with micro-meter spatial resolution. The LSM will be used in conjunction with surface preparation and characterization techniques to create definitive links between physical and chemical processing steps and ultimate cryogenic microwave performance. We propose to develop RF laser scanning microscopy of small-sample Nb pieces to establish surface-processing / RF performance relations through measurement of RF current distributions on micron-length scales and low temperatures.

Anlage, Steven [University of Maryland

2014-07-23T23:59:59.000Z

118

Active high-power RF switch and pulse compression system  

DOE Patents [OSTI]

A high-power RF switching device employs a semiconductor wafer positioned in the third port of a three-port RF device. A controllable source of directed energy, such as a suitable laser or electron beam, is aimed at the semiconductor material. When the source is turned on, the energy incident on the wafer induces an electron-hole plasma layer on the wafer, changing the wafer's dielectric constant, turning the third port into a termination for incident RF signals, and. causing all incident RF signals to be reflected from the surface of the wafer. The propagation constant of RF signals through port 3, therefore, can be changed by controlling the beam. By making the RF coupling to the third port as small as necessary, one can reduce the peak electric field on the unexcited silicon surface for any level of input power from port 1, thereby reducing risk of damaging the wafer by RF with high peak power. The switch is useful to the construction of an improved pulse compression system to boost the peak power of microwave tubes driving linear accelerators. In this application, the high-power RF switch is placed at the coupling iris between the charging waveguide and the resonant storage line of a pulse compression system. This optically controlled high power RF pulse compression system can handle hundreds of Megawatts of power at X-band.

Tantawi, Sami G. (San Mateo, CA); Ruth, Ronald D. (Woodside, CA); Zolotorev, Max (Mountain View, CA)

1998-01-01T23:59:59.000Z

119

A new microphonics measurement method for superconducting RF...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

new microphonics measurement method for superconducting RF cavities Re-direct Destination: Mechanical vibrations of the superconducting cavity, also known as microphonics, cause...

120

argon rf plasma: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

you for being so encouraging, for listening to and understanding the woes of RF plasma research, and for being so friendly at conferences and in the hallways. Professor...

Note: This page contains sample records for the topic "division head rf" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Sandia National Laboratories: RF & Photonics  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -theErik SpoerkeSolar Regional Test CenterCMCNational LaboratoriesRF &

122

Jefferson Lab Divisions & Departments  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFunInfraredJefferson Lab Click on theJames D.AnnouncesWorldTherapy |Divisions

123

Chemical Technology Division annual technical report 1997  

SciTech Connect (OSTI)

The Chemical Technology (CMT) Division is a diverse technical organization with principal emphases in environmental management and development of advanced energy sources. The Division conducts research and development in three general areas: (1) development of advanced power sources for stationary and transportation applications and for consumer electronics, (2) management of high-level and low-level nuclear wastes and hazardous wastes, and (3) electrometallurgical treatment of spent nuclear fuel. The Division also performs basic research in catalytic chemistry involving molecular energy resources, mechanisms of ion transport in lithium battery electrolytes, and the chemistry of technology-relevant materials and electrified interfaces. In addition, the Division operates the Analytical Chemistry Laboratory, which conducts research in analytical chemistry and provides analytical services for programs at Argonne National Laboratory (ANL) and other organizations. Technical highlights of the Division`s activities during 1997 are presented.

NONE

1998-06-01T23:59:59.000Z

124

Extremely high frequency RF effects on electronics.  

SciTech Connect (OSTI)

The objective of this work was to understand the fundamental physics of extremely high frequency RF effects on electronics. To accomplish this objective, we produced models, conducted simulations, and performed measurements to identify the mechanisms of effects as frequency increases into the millimeter-wave regime. Our purpose was to answer the questions, 'What are the tradeoffs between coupling, transmission losses, and device responses as frequency increases?', and, 'How high in frequency do effects on electronic systems continue to occur?' Using full wave electromagnetics codes and a transmission-line/circuit code, we investigated how extremely high-frequency RF propagates on wires and printed circuit board traces. We investigated both field-to-wire coupling and direct illumination of printed circuit boards to determine the significant mechanisms for inducing currents at device terminals. We measured coupling to wires and attenuation along wires for comparison to the simulations, looking at plane-wave coupling as it launches modes onto single and multiconductor structures. We simulated the response of discrete and integrated circuit semiconductor devices to those high-frequency currents and voltages, using SGFramework, the open-source General-purpose Semiconductor Simulator (gss), and Sandia's Charon semiconductor device physics codes. This report documents our findings.

Loubriel, Guillermo Manuel; Vigliano, David; Coleman, Phillip Dale; Williams, Jeffery Thomas; Wouters, Gregg A.; Bacon, Larry Donald; Mar, Alan

2012-01-01T23:59:59.000Z

125

EARTH SCIENCES DIVISION ANNUAL REPORT 1978  

E-Print Network [OSTI]

of Energy's Division of Geothermal Energy has undertaken aand Ghormley, E. L. , 1976. Geothermal energy conversion andsuch diverse areas as geothermal energy, oil recovery, in-

Authors, Various

2012-01-01T23:59:59.000Z

126

EARTH SCIENCES DIVISION. ANNUAL REPORT 1977.  

E-Print Network [OSTI]

8erkeley Laboratory (LBL), the Earth Sciences Division, wasactivation analysis: rare earth element distribution (D)can be used to generate earth- quake records for use in

Witherspoon, P.A.

2011-01-01T23:59:59.000Z

127

Supervisory General Engineer (Facility Engineering Division Director)  

Broader source: Energy.gov [DOE]

A successful candidate in this position will lead the Facility Engineering Division by providing internal and independent safety system oversight of Waste Isolation Pilot Plant (WIPP) operations in...

128

Colorado Air Pollution Control Division - Construction Permits...  

Open Energy Info (EERE)

Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Colorado Air Pollution Control Division - Construction Permits Forms and Air Pollutant Emission...

129

X-Ray Science Division (XSD)  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

X-Ray Science Division (XSD) Search Button About Welcome Overview Visiting the APS Mission & Goals Find People Organization Charts Committees Job Openings User Information...

130

Enforcement Letter, Westinghouse Waste Isolation Division - October...  

Broader source: Energy.gov (indexed) [DOE]

Division related to four noncompliances with the requirements of the Quality Assurance Rule andor the Occupational Radiation Protection Rule at DOE's Waste Isolation...

131

RF Thermal Plasma Synthesis of Ferrite Nanopowders from Metallurgical Wastes  

E-Print Network [OSTI]

RF Thermal Plasma Synthesis of Ferrite Nanopowders from Metallurgical Wastes J.Szépvölgyi1 , I Department of General Physics, Eötvös University H-1518 Budapest, P.O.B. 32 Hungary Keywords: zinc ferrite, thermal plasma, waste, XRD Abstract. RF thermal plasma synthesis of zinc-ferrite nanopowders has been

Gubicza, Jenõ

132

RF-MEMS capacitive switches with high reliability  

DOE Patents [OSTI]

A reliable long life RF-MEMS capacitive switch is provided with a dielectric layer comprising a "fast discharge diamond dielectric layer" and enabling rapid switch recovery, dielectric layer charging and discharging that is efficient and effective to enable RF-MEMS switch operation to greater than or equal to 100 billion cycles.

Goldsmith, Charles L.; Auciello, Orlando H.; Carlisle, John A.; Sampath, Suresh; Sumant, Anirudha V.; Carpick, Robert W.; Hwang, James; Mancini, Derrick C.; Gudeman, Chris

2013-09-03T23:59:59.000Z

133

Booster Synchrotron RF System Upgrade for SPEAR3  

SciTech Connect (OSTI)

Recent progress at the SPEAR3 includes the increase in stored current from 100 mA to 200 mA and top-off injection to allow beamlines to stay open during injection. Presently the booster injects 3.0 GeV beam to SPEAR3 three times a day. The stored beam decays to about 150 mA between the injections. The growing user demands are to increase the stored current to the design value of 500 mA, and to maintain it at a constant value within a percent or so. To achieve this goal the booster must inject once every few minutes. For improved injection efficiency, all RF systems at the linac, booster and SPEAR3 need to be phase-locked. The present booster RF system is basically a copy of the SPEAR2 RF system with 358.5 MHz and 40 kW peak RF power driving a 5-cell RF cavity for 1.0 MV gap voltage. These requirements entail a booster RF system upgrade to a scaled down version of the SPEAR3 RF system of 476.3 MHz with 1.2 MW cw klystron output power capabilities. We will analyze each subsystem option for their merits within budgetary and geometric space constraints. A substantial portion of the system will come from the decommissioned PEP-II RF stations.

Park, Sanghyun; /SLAC; Corbett, Jeff; /SLAC

2012-07-06T23:59:59.000Z

134

RF cavity using liquid dielectric for tuning and cooling  

DOE Patents [OSTI]

A system for accelerating particles includes an RF cavity that contains a ferrite core and a liquid dielectric. Characteristics of the ferrite core and the liquid dielectric, among other factors, determine the resonant frequency of the RF cavity. The liquid dielectric is circulated to cool the ferrite core during the operation of the system.

Popovic, Milorad (Warrenville, IL); Johnson, Rolland P. (Newport News, VA)

2012-04-17T23:59:59.000Z

135

Heater head for Stirling engine  

SciTech Connect (OSTI)

This patent describes a heater head for a Stirling engine comprising: a housing for enclosing the heater head with gas at a substantial elevated pressure; insulator means attached to the housing for insulating the heater head; inlet means attached to a regenerator in the housing for admission of relatively high pressure working fluid from the regenerator of a Stirling engine; a first annular heating wall in the housing attached to the inlet means for heating the working fluid; and, a second annular heating wall in the housing concentric with the first heating wall but of lesser diameters so that an annular space is formed between the first heating wall and the second heating wall for heating working fluid; and a third heating wall in the housing concentric with and smaller in diameter than the second heating wall forming the condensing area of a heat pipe between the second heating wall and the third heating wall.

White, M.A.; Emigh, S.G.

1987-06-09T23:59:59.000Z

136

Progress on a cryogenically cooled RF gun polarized electron source  

SciTech Connect (OSTI)

RF guns have proven useful in multiple accelerator applications. An RF gun capable of producing polarized electrons is an attractive electron source for the ILC or an electron-ion collider. Producing such a gun has proven elusive. The NEA GaAs photocathode needed for polarized electron production is damaged by the vacuum environment in an RF gun. Electron and ion back bombardment can also damage the cathode. These problems must be mitigated before producing an RF gun polarized electron source. In this paper we report continuing efforts to improve the vacuum environment in a normal conducting RF gun by cooling it with liquid nitrogen after a high temperature vacuum bake out. We also report on a design of a cathode preparation chamber to produce bulk GaAs photocathodes for testing in such a gun. Future directions are also discussed.

Fliller, R.P., III; Edwards, H.; /Fermilab

2006-08-01T23:59:59.000Z

137

The electrical and lumen output characteristics of an RF lamp  

SciTech Connect (OSTI)

Low pressure rf discharges have been studied for over a century. Their first practical application for lighting was proposed by Tesla in 1891. Since then hundreds of patents have been published attempting to implement rf lighting. However, progress in understanding rf discharge phenomena (mostly driven by plasma processing needs) and dramatic improvement in the performance/cost ratio of rf power sources have recently opened the door for development of rf light sources. Today commercial inductively coupled electrodeless lamps are offered by Matsuhita, Philips and GE. In this work the authors present measurements of the electrical characteristics and lumen output from a 2.65 MHz driven inductively coupled light source. Measurements were made on a spherical lamp of 3.125 inch diameter with a re-entrant cavity that houses a cylindrical ferrite core around which is wrapped the primary coil.

Alexandrovich, B.M.; Godyak, V.A.; Piejak, R.B. [Osram Sylvania Inc., Beverly, MA (United States)

1996-12-31T23:59:59.000Z

138

Upgrade of the cryogenic CERN RF test facility  

SciTech Connect (OSTI)

With the large number of superconducting radiofrequency (RF) cryomodules to be tested for the former LEP and the present LHC accelerator a RF test facility was erected early in the 1990s in the largest cryogenic test facility at CERN located at Point 18. This facility consisted of four vertical test stands for single cavities and originally one and then two horizontal test benches for RF cryomodules operating at 4.5 K in saturated helium. CERN is presently working on the upgrade of its accelerator infrastructure, which requires new superconducting cavities operating below 2 K in saturated superfluid helium. Consequently, the RF test facility has been renewed in order to allow efficient cavity and cryomodule tests in superfluid helium and to improve its thermal performances. The new RF test facility is described and its performances are presented.

Pirotte, O.; Benda, V.; Brunner, O.; Inglese, V.; Maesen, P.; Vullierme, B. [CERN - European Organization for Nuclear Research, CH-1211 Geneva 23 (Switzerland); Koettig, T. [ESS - European Spallation Source, Box 176, 221 00 Lund (Sweden)

2014-01-29T23:59:59.000Z

139

SUPERCONDUCTING RF-DIPOLE DEFLECTING AND CRABBING CAVITIES  

SciTech Connect (OSTI)

Recent interests in designing compact deflecting and crabbing structures for future accelerators and colliders have initiated the development of novel rf structures. The superconducting rf-dipole cavity is one of the first compact designs with attractive properties such as higher gradients, higher shunt impedance, the absence of lower order modes and widely separated higher order modes. Two rf-dipole designs of 400 MHz and 499 MHz have been designed, fabricated and tested as proof-of-principle designs of compact deflecting and crabbing cavities for the LHC high luminosity upgrade and Jefferson Lab 12 GeV upgrade. The first rf tests have been performed on the rf-dipole geometries at 4.2 K and 2.0 K in a vertical test assembly with excellent results. The cavities have achieved high gradients with high intrinsic quality factors, and multipacting levels were easily processed.

Delayen, Jean [ODU, JLAB; De Silva, Paygalage Subashini [ODU, JLAB

2013-09-01T23:59:59.000Z

140

Hydrogen-filled RF Cavities for Muon Beam Cooling  

SciTech Connect (OSTI)

Ionization cooling requires low-Z energy absorbers immersed in a strong magnetic field and high-gradient, large-aperture RF cavities to be able to cool a muon beam as quickly as the short muon lifetime requires. RF cavities that operate in vacuum are vulnerable to dark-current- generated breakdown, which is exacerbated by strong magnetic fields, and they require extra safety windows that degrade cooling, to separate RF regions from hydrogen energy absorbers. RF cavities pressurized with dense hydrogen gas will be developed that use the same gas volume to provide the energy absorber and the RF acceleration needed for ionization cooling. The breakdown suppression by the dense gas will allow the cavities to operate in strong magnetic fields. Measurements of the operation of such a cavity will be made as functions of external magnetic field and charged particle beam intensity and compared with models to understand the characteristics of this technology and to develop mitigating strategies if necessary.

CHARLES, Ankenbrandt

2009-04-17T23:59:59.000Z

Note: This page contains sample records for the topic "division head rf" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Traveling Wave RF Systems for Helical Cooling Channels  

SciTech Connect (OSTI)

The great advantage of the helical ionization cooling channel (HCC) is its compact structure that enables the fast cooling of muon beam 6-dimensional phase space. This compact aspect requires a high average RF gradient, with few places that do not have cavities. Also, the muon beam is diffuse and requires an RF system with large transverse and longitudinal acceptance. A traveling wave system can address these requirements. First, the number of RF power coupling ports can be significantly reduced compared with our previous pillbox concept. Secondly, by adding a nose on the cell iris, the presence of thin metal foils traversed by the muons can possibly be avoided. We show simulations of the cooling performance of a traveling wave RF system in a HCC, including cavity geometries with inter-cell RF power couplers needed for power propagation.

Yonehara, K.; Lunin, A.; Moretti, A.; Popovic, M.; Romanov, G.; /Fermilab; Neubauer, M.; Johnson, R.P.; /Muons Inc., Batavia; Thorndahl, L.; /CERN

2009-05-01T23:59:59.000Z

142

Wideband high efficiency CMOS envelope amplifiers for 4G LTE handset envelope tracking RF power amplifiers  

E-Print Network [OSTI]

addition, the small equivalent resistance of 8? of the RF PAor inefficient. The equivalent resistance of RF PA, R PA ,normalized equivalent load resistance (R PA ) representing

Hassan, Muhammad

2012-01-01T23:59:59.000Z

143

High-power RF testing of a 352-MHZ fast-ferrite RF cavity tuner at the Advanced Photon Source.  

SciTech Connect (OSTI)

A 352-MHz fast-ferrite rf cavity tuner, manufactured by Advanced Ferrite Technology, was high-power tested on a single-cell copper rf cavity at the Advanced Photon Source. These tests measured the fast-ferrite tuner performance in terms of power handling capability, tuning bandwidth, tuning speed, stability, and rf losses. The test system comprises a single-cell copper rf cavity fitted with two identical coupling loops, one for input rf power and the other for coupling the fast-ferrite tuner to the cavity fields. The fast-ferrite tuner rf circuit consists of a cavity coupling loop, a 6-1/8-inch EIA coaxial line system with directional couplers, and an adjustable 360{sup o} mechanical phase shifter in series with the fast-ferrite tuner. A bipolar DC bias supply, controlled by a low-level rf cavity tuning loop consisting of an rf phase detector and a PID amplifier, is used to provide a variable bias current to the tuner ferrite material to maintain the test cavity at resonance. Losses in the fast-ferrite tuner are calculated from cooling water calorimetry. Test data will be presented.

Horan, D.; Cherbak, E.; Accelerator Systems Division (APS)

2006-01-01T23:59:59.000Z

144

School of Art Division of Graphic Design  

E-Print Network [OSTI]

.372.7763 419.372.6955 fax lyoung@bgsu.edu www.bgsu.edu/art BOWLING GREEN STATE UNIVERSITY Division of Graphic.bgsu.edu/art BOWLING GREEN STATE UNIVERSITY 1) Be of Junior (60+ hours) or Senior (90+ hours) standing withinSchool of Art Division of Graphic Design 1020 Fine Arts Center Bowling Green, Ohio 43403-0204 419

Moore, Paul A.

145

Satellite Meteorology and Climatology Division Roadmap  

E-Print Network [OSTI]

Satellite Meteorology and Climatology Division Roadmap NOAA NESDIS Center for Satellite Applications and Research #12;SMCD Roadmap 2 NOAA/NESDIS/STAR Satellite Meteorology and Climatology Division Roadmap September 2005 NOAA Science Center, 5200 Auth Road, Room 712, Camp Springs, MD 20746 #12;SMCD

Kuligowski, Bob

146

Materials Sciences Division 1990 annual report  

SciTech Connect (OSTI)

This report is the Materials Sciences Division`s annual report. It contains abstracts describing materials research at the National Center for Electron Microscopy, and for research groups in metallurgy, solid-state physics, materials chemistry, electrochemical energy storage, electronic materials, surface science and catalysis, ceramic science, high tc superconductivity, polymers, composites, and high performance metals.

Not Available

1990-12-31T23:59:59.000Z

147

West Virginia University Division of Human Resources  

E-Print Network [OSTI]

on the WVU Division of Human Resources Web page hr.wvu.edu. In the event of a conflict between the current posted version and this printed copy, the posted version on the Web page is controlling. Page 1 of 2 of this administrative procedure has been posted on the WVU Division of Human Resources Web page hr.wvu.edu. In the event

Mohaghegh, Shahab

148

West Virginia University Division of Human Resources  

E-Print Network [OSTI]

Division of Human Resources Web page hr.wvu.edu. In the event of a conflict between the current posted version and this printed copy, the posted version on the Web page is controlling. Page 1 of 2 Access been posted on the WVU Division of Human Resources Web page hr.wvu.edu. In the event of a conflict

Mohaghegh, Shahab

149

West Virginia University Division of Human Resources  

E-Print Network [OSTI]

Division of Human Resources Web page hr.wvu.edu. In the event of a conflict between the current posted version and this printed copy, the posted version on the Web page is controlling. Page 1 of 2 Employment been posted on the WVU Division of Human Resources Web page hr.wvu.edu. In the event of a conflict

Mohaghegh, Shahab

150

West Virginia University Division of Human Resources  

E-Print Network [OSTI]

on the WVU Division of Human Resources Web page hr.wvu.edu. In the event of a conflict between the current posted version and this printed copy, the posted version on the Web page is controlling. Page 1 of 2 been posted on the WVU Division of Human Resources Web page hr.wvu.edu. In the event of a conflict

Mohaghegh, Shahab

151

West Virginia University Division of Human Resources  

E-Print Network [OSTI]

on the WVU Division of Human Resources Web page hr.wvu.edu. In the event of a conflict between the current posted version and this printed copy, the posted version on the Web page is controlling. Page 1 of 3 Division of Human Resources Web page hr.wvu.edu. In the event of a conflict between the current posted

Mohaghegh, Shahab

152

EMS Division Potential Benefits of Selected  

E-Print Network [OSTI]

driven by a high speed gas turbine supplied power to a 400 HP superconductive homopolar motor during at Overcome by New Technology: Cryocoolers & Cu Fiber brushes2 #12;EMS Division Baseline with Multi-turn Field Coil Multi-turn Armature Cryostat Steel Flux Return #12;EMS Division Homopolar Motor Technology

153

Fixed Income Division Nomura International plc  

E-Print Network [OSTI]

Fixed Income Division © Nomura International plc Symmetry methods for quadratic Gaussian models International plc Outline Motivation The quadratic Gaussian distribution The quadratic Gaussian process The quadratic Gaussian model #12;Fixed Income Division 3© Nomura International plc Part 1 Motivation #12;Fixed

Macrina, Andrea

154

Nuclear Engineering Division Irradiated Materials Laboratory  

E-Print Network [OSTI]

Nuclear Engineering Division Irradiated Materials Laboratory The Irradiated Materials Laboratory (IML) in Argonne's Nuclear Engineering Division is used to conduct research on the behavior. #12;C O N TA C T > Dr. Michael C. Billone | 630-252-7146 | billone@anl.gov | Nuclear Engineering

Kemner, Ken

155

The Division of Biology & Biomedical Sciences  

E-Print Network [OSTI]

The Division of Biology & Biomedical Sciences what will you discover? #12;what will you discover and Biomedical Sciences Washington University in St. Louis dbbs.wustl.edu On the cover: Moshi Song (left of other disciplines. The Division of Biology and Biomedical Sciences is ideally positioned to foster

Stormo, Gary

156

Physics division annual report 2005.  

SciTech Connect (OSTI)

This report highlights the research performed in 2005 in the Physics Division of Argonne National Laboratory. The Division's programs include operation of ATLAS as a national user facility, nuclear structure and reaction research, nuclear theory, medium energy nuclear research and accelerator research and development. The mission of Nuclear Physics is to understand the origin, evolution and structure of baryonic matter in the universe--the matter that makes up stars, planets and human life itself. The Division's research focuses on innovative new ways to address this mission and 2005 was a year of great progress. One of the most exciting developments is the initiation of the Californium Rare Ion Breeder Upgrade, CARIBU. By combining a Cf-252 fission source, the gas catcher technology developed for rare isotope beams, a high-resolution isobar separator, and charge breeding ECR technology, CARIBU will make hundreds of new neutron-rich isotope beams available for research. The cover illustration shows the anticipated intensities of low-energy beams that become available for low-energy experiments and for injection into ATLAS for reacceleration. CARIBU will be completed in early 2009 and provide us with considerable experience in many of the technologies developed for a future high intensity exotic beam facility. Notable results in research at ATLAS include a measurement of the isomeric states in {sup 252}No that helps pin down the single particle structure expected for superheavy elements, and a new low-background measurement of {sup 16}N beta-decay to determine the {sup 12}C({alpha},{gamma}){sup 16}O reaction rate that is so important in astrophysical environments. Precise mass measurements shed new light on the unitarity of the quark weak-mixing matrix in the search for physics beyond the standard model. ATLAS operated for 4686 hours of research in FY2005 while achieving 95% efficiency of beam delivery for experiments. In Medium-Energy Physics, radium isotopes were trapped in an atom trap for the first time, a major milestone in an innovative search for the violation of time-reversal symmetry. New results from HERMES establish that strange quarks carry little of the spin of the proton and precise results have been obtained at JLAB on the changes in quark distributions in light nuclei. New theoretical results reveal that the nature of the surfaces of strange quark stars. Green's function Monte Carlo techniques have been extended to scattering problems and show great promise for the accurate calculation, from first principles, of important astrophysical reactions. Flame propagation in type 1A supernova has been simulated, a numerical process that requires considering length scales that vary by factors of eight to twelve orders of magnitude. Argonne continues to lead in the development and exploitation of the new technical concepts that will truly make an advanced exotic beam facility, in the words of NSAC, 'the world-leading facility for research in nuclear structure and nuclear astrophysics'. Our science and our technology continue to point the way to this major advance. It is a tremendously exciting time in science for these new capabilities hold the keys to unlocking important secrets of nature. The great progress that has been made in meeting the exciting intellectual challenges of modern nuclear physics reflects the talents and dedication of the Physics Division staff and the visitors, guests and students who bring so much to the research.

Glover, J.; Physics

2007-03-12T23:59:59.000Z

157

Mr. Salah ChoukiMr. Rajeev AroraHubert H. Humphrey Head, Feed Resources Division,  

E-Print Network [OSTI]

benefit from the American expertise in the fields of wastewater treatment and water resources. Hintsa Ghebremedhin Bisrat Enterprise Development CoordinatorRuwi, Sultanate of Oman Rural Enterprise and As Enterprise Development Coordinator for the Rural Enterprise Unit under the Rural Enterprise Investment

Schladow, S. Geoffrey

158

Department and function: Head of Division of Cell Biology and Immunology, HZI  

E-Print Network [OSTI]

, Karst U, Fischer E, Wehland J, Jansch L. Nucleic Acids Res. 2006; 34(Database issue):D402-6. Jenzora A, Gerstel B, Loessner M, Wehland J, Jansch L. J Bacteriol. 2007;189(2):313-24. Thedieck K, Hain T, Mohamed W, Tindall BJ, Nimtz M, Chakraborty T, Wehland J, Jansch L. Mol Microbiol. 2006;62(5):1325-39. Wissing J

Manstein, Dietmar J.

159

1998 Chemical Technology Division Annual Technical Report.  

SciTech Connect (OSTI)

The Chemical Technology (CMT) Division is a diverse technical organization with principal emphases in environmental management and development of advanced energy sources. The Division conducts research and development in three general areas: (1) development of advanced power sources for stationary and transportation applications and for consumer electronics, (2) management of high-level and low-level nuclear wastes and hazardous wastes, and (3) electrometallurgical treatment of spent nuclear fuel. The Division also performs basic research in catalytic chemistry involving molecular energy resources, mechanisms of ion transport in lithium battery electrolytes, and the chemistry of technology-relevant materials. In addition, the Division operates the Analytical Chemistry Laboratory, which conducts research in analytical chemistry and provides analytical services for programs at Argonne National Laboratory (ANL) and other organizations. Technical highlights of the Division's activities during 1998 are presented.

Ackerman, J.P.; Einziger, R.E.; Gay, E.C.; Green, D.W.; Miller, J.F.

1999-08-06T23:59:59.000Z

160

Pressure testing of torispherical heads  

SciTech Connect (OSTI)

Two vessels fabricated from SA516-70 steel with 6% knuckle radius torispherical heads were tested under internal pressure to failure. The D/t ratios of Vessel 1 and Vessel 2 were 238 and 185 respectively. The calculated maximum allowable working pressures of Vessel 1 and 2 heads using the ASME Section 8, Div. 1 rules and measured dimensions were 85 and 110 psi, respectively. Vessel 1 failed at a nozzle weld in the cylindrical shell at 700 psi pressure. Neither buckling nor any other objectionable deformation of the head was observed at a theoretical double-elastic-slope collapse pressure of 241 and a calculated buckling pressure of 270 psi. Buckles were observed developing slowly after 600 psi pressure, and a total of 22 buckles were observed after the test, having the maximum amplitude of 0.15 inch. Vessel 2 failed at the edge of the longitudinal weld of the cylindrical shell at 1,080 psi pressure. Neither buckling nor any other objectionable deformation of the head was observed up to the final pressure, which exceeded the theoretical double-elastic-slope collapse and calculated buckling pressures of 274 psi and 342 psi, respectively.

Rana, M.D. [Praxair, Inc., Tonawanda, NY (United States). Research and Development Dept.; Kalnins, A.; Updike, D.P. [Lehigh Univ., Bethlehem, PA (United States)

1995-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "division head rf" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Chemical and Laser Sciences Division annual report 1989  

SciTech Connect (OSTI)

The Chemical and Laser Sciences Division Annual Report includes articles describing representative research and development activities within the Division, as well as major programs to which the Division makes significant contributions.

Haines, N. (ed.)

1990-06-01T23:59:59.000Z

162

MATERIALS AND MOLECULAR RESEARCH DIVISION ANNUAL REPORT 1979  

E-Print Network [OSTI]

and rf power leveL (XBL 7910-7232) RESEAIZCII PJJ\\J\\JS T:oRand rf power. (XBL 7910-7232) the films as a function of

Authors, Various

2013-01-01T23:59:59.000Z

163

Analyzing pulse from head motions in video  

E-Print Network [OSTI]

We extract heart rate and beat lengths from videos by measuring subtle head oscillations that accompany the cardiac cycle. Our method tracks features on the head, temporally filters their trajectories and performs principal ...

Balakrishnan, Guha

2014-01-01T23:59:59.000Z

164

Design studies for the LCLS 120 Hz RF gun  

SciTech Connect (OSTI)

A preliminary design studies were carried out at Brookhaven National Laboratory for a photocathode RF gun injection system for LCLS 120 Hz operation. The starting point for the design is 50 Hz BNL Gun IV developed by a BNL/KEK/SHI collaboration. The basic parameters of the 120 Hz gun is discussed in this report. The complete photocathode RF gun injection system is described for a 120 Hz operation. The injector system includes photocathode RF gun, emittance compensation solenoid magnet, laser system and laser beam delivery system, and electron beam diagnostics. The basic design parameters, mechanical modification and the performance will be presented in this report.

Wang, X.J.; Babzien, M.; Ben-Zvi, I.; Chang, X.Y.; Pjerov, S.; Woodle, M.

2000-11-01T23:59:59.000Z

165

An RF dosimeter for independent SAR measurement in MRI scanners  

SciTech Connect (OSTI)

Purpose: The monitoring and management of radio frequency (RF) exposure is critical for ensuring magnetic resonance imaging (MRI) safety. Commercial MRI scanners can overestimate specific absorption rates (SAR) and improperly restrict clinical MRI scans or the application of new MRI sequences, while underestimation of SAR can lead to tissue heating and thermal injury. Accurate scanner-independent RF dosimetry is essential for measuring actual exposure when SAR is critical for ensuring regulatory compliance and MRI safety, for establishing RF exposure while evaluating interventional leads and devices, and for routine MRI quality assessment by medical physicists. However, at present there are no scanner-independent SAR dosimeters. Methods: An SAR dosimeter with an RF transducer comprises two orthogonal, rectangular copper loops and a spherical MRI phantom. The transducer is placed in the magnet bore and calibrated to approximate the resistive loading of the scanner's whole-body birdcage RF coil for human subjects in Philips, GE and Siemens 3 tesla (3T) MRI scanners. The transducer loop reactances are adjusted to minimize interference with the transmit RF field (B{sub 1}) at the MRI frequency. Power from the RF transducer is sampled with a high dynamic range power monitor and recorded on a computer. The deposited power is calibrated and tested on eight different MRI scanners. Whole-body absorbed power vs weight and body mass index (BMI) is measured directly on 26 subjects. Results: A single linear calibration curve sufficed for RF dosimetry at 127.8 MHz on three different Philips and three GE 3T MRI scanners. An RF dosimeter operating at 123.2 MHz on two Siemens 3T scanners required a separate transducer and a slightly different calibration curve. Measurement accuracy was ?3%. With the torso landmarked at the xiphoid, human adult whole?body absorbed power varied approximately linearly with patient weight and BMI. This indicates that whole-body torso SAR is on average independent of the imaging subject, albeit with fluctuations. Conclusions: Our 3T RF dosimeter and transducers accurately measure RF exposure in body-equivalent loads and provide scanner-independent assessments of whole-body RF power deposition for establishing safety compliance useful for MRI sequence and device testing.

Qian, Di; Bottomley, Paul A. [Division of MR Research, Department of Radiology, Johns Hopkins School of Medicine, Baltimore, Maryland 21287 and Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, Maryland 21218 (United States)] [Division of MR Research, Department of Radiology, Johns Hopkins School of Medicine, Baltimore, Maryland 21287 and Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, Maryland 21218 (United States); El-Sharkawy, AbdEl-Monem M.; Edelstein, William A., E-mail: w.edelstein@gmail.com [Division of MR Research, Department of Radiology, Johns Hopkins School of Medicine, Baltimore, Maryland 21287 (United States)

2013-12-15T23:59:59.000Z

166

Table 23. Coal Receipts at Coke Plants by Census Division  

U.S. Energy Information Administration (EIA) Indexed Site

Division (thousand short tons) U.S. Energy Information Administration | Quarterly Coal Report, April - June 2014 Table 23. Coal Receipts at Coke Plants by Census Division...

167

Earth Sciences Division Research Summaries 2006-2007  

E-Print Network [OSTI]

the commencement of the Earth Sciences Division 30 yearstelling. Happy Anniversary! Earth Sciences Division ears YTritium in Engineered and Earth Materials Stefan Finsterle,

DePaolo, Donald

2008-01-01T23:59:59.000Z

168

Physics Division annual report 2004.  

SciTech Connect (OSTI)

This report highlights the research performed in 2004 in the Physics Division of Argonne National Laboratory. The Division's programs include operation of ATLAS as a national user facility, nuclear structure and reaction research, nuclear theory, medium energy nuclear research and accelerator research and development. The intellectual challenges of this research represent some of the most fundamental challenges in modern science, shaping our understanding of both tiny objects at the center of the atom and some of the largest structures in the universe. A great strength of these efforts is the critical interplay of theory and experiment. Notable results in research at ATLAS include a measurement of the charge radius of He-6 in an atom trap and its explanation in ab-initio calculations of nuclear structure. Precise mass measurements on critical waiting point nuclei in the rapid-proton-capture process set the time scale for this important path in nucleosynthesis. An abrupt fall-off was identified in the subbarrier fusion of several heavy-ion systems. ATLAS operated for 5559 hours of research in FY2004 while achieving 96% efficiency of beam delivery for experiments. In Medium Energy Physics, substantial progress was made on a long-term experiment to search for the violation of time-reversal invariance using trapped Ra atoms. New results from HERMES reveal the influence of quark angular momentum. Experiments at JLAB search for evidence of color transparency in rho-meson production and study the EMC effect in helium isotopes. New theoretical results include a Poincare covariant description of baryons as composites of confined quarks and non-point-like diquarks. Green's function Monte Carlo techniques give accurate descriptions of the excited states of light nuclei and these techniques been extended to scattering states for astrophysics studies. A theoretical description of the phenomena of proton radioactivity has been extended to triaxial nuclei. Argonne continues to lead in the development and exploitation of the new technical concepts that will truly make RIA, in the words of NSAC, ''the world-leading facility for research in nuclear structure and nuclear astrophysics''. The performance standards for new classes of superconducting cavities continue to increase. Driver linac transients and faults have been analyzed to understand reliability issues and failure modes. Liquid-lithium targets were shown to successfully survive the full-power deposition of a RIA beam. Our science and our technology continue to point the way to this major advance. It is a tremendously exciting time in science for RIA holds the keys to unlocking important secrets of nature. The work described here shows how far we have come and makes it clear we know the path to meet these intellectual challenges. The great progress that has been made in meeting the exciting intellectual challenges of modern nuclear physics reflects the talents and dedication of the Physics Division staff and the visitors, guests and students who bring so much to the research.

Glover, J.

2006-04-06T23:59:59.000Z

169

Biology and Medicine Division: Annual report 1986  

SciTech Connect (OSTI)

The Biology and Medicine Division continues to make important contributions in scientific areas in which it has a long-established leadership role. For 50 years the Division has pioneered in the application of radioisotopes and charged particles to biology and medicine. There is a growing emphasis on cellular and molecular applications in the work of all the Division's research groups. The powerful tools of genetic engineering, the use of recombinant products, the analytical application of DNA probes, and the use of restriction fragment length polymorphic DNA are described and proposed for increasing use in the future.

Not Available

1987-04-01T23:59:59.000Z

170

Earth Sciences Division collected abstracts: 1979  

SciTech Connect (OSTI)

This report is a compilation of abstracts of papers, internal reports, and talks presented during 1979 at national and international meetings by members of the Earth Sciences Division, Lawrence Livermore Laboratory. The arrangement is alphabetical (by author). For a given report, a bibliographic reference appears under the name of each coauthor, but the abstract iself is given only under the name of the first author or the first Earth Sciences Division author. A topical index at the end of the report provides useful cross references, while indicating major areas of research interest in the Earth Sciences Division.

Henry, A.L.; Schwartz, L.L.

1980-04-30T23:59:59.000Z

171

High performance RF and baseband building blocks for wireless receivers  

E-Print Network [OSTI]

market has suddenly expanded to unimaginable dimensions. Devices such as pagers, cellular and cordless phones, cable modems, and RF identification (RFID) tags are rapidly penetrating all aspects of our lives, evolving from luxury items to indispensable...

Bahmani, Faramarz

2007-09-17T23:59:59.000Z

172

CMOS RF Power Amplifier Design for Wireless Communications  

E-Print Network [OSTI]

conjugate (S22) match (solid curve) and power match (dashedSupply Linear RF Power Amplifier", IEEE J. Solid-State Circ.Fully-integrated CMOS Power Amplifiers", IEEE J. Solid-State

FANG, Qiang

2012-01-01T23:59:59.000Z

173

Progress on the Mice 201 MNz RF Cavity at LBNL  

E-Print Network [OSTI]

like to thank people at LBNL EH&S and Main Machine Shop forMICE 201 MHz RF CAVITY AT LBNL* Tianhuan Luol, Don Summers,Virostek, Michael Zisman, LBNL, Berkeley, CA 94720, USA

Luo, Tianhuan

2014-01-01T23:59:59.000Z

174

Electrodeless lighting RF power source development. Final report  

SciTech Connect (OSTI)

An efficient, solid state RF power source has been developed on this NICE project for exciting low power electrodeless lamp bulbs. This project takes full advantage of concurrent advances in electrodeless lamp technology. Electrodeless lamp lighting systems utilizing the sulfur based bulb type developed by Fusion Lighting, Inc., is an emerging technology which is based on generating light in a confined plasma created and sustained by RF excitation. The bulb for such a lamp is filled with a particular element and inert gas at low pressure when cold. RF power from the RF source creates a plasma within the bulb which reaches temperatures approaching those of high pressure discharge lamp plasmas. At these temperatures the plasma radiates substantial visible light with a spectrum similar to sunlight.

NONE

1996-08-30T23:59:59.000Z

175

Rf System Requirements for JLabs MEIC Collider Ring  

SciTech Connect (OSTI)

The Medium-energy Electron Ion Collider (MEIC), proposed by Jefferson Lab, consists of a series of accelerators. At the top energy are the electron and ion collider rings. For the ion ring, it accelerates five long ion bunches to colliding energy and rebunches ions into a train of very short bunches before colliding. A set of low frequency RF system is needed for the long ion bunch energy ramping. Another set of high frequency RF cavities is needed to rebunch ions. For the electron ring, superconducting RF (SRF) cavities are needed to compensate the synchrotron radiation energy loss. The impedance of the SRF cavities must be low enough to keep the high current electron beam stable. The preliminary design requirements of these RF cavities are presented.

Wang, Shaoheng [JLAB; Li, Rui [JLAB; Rimmer, Robert A. [JLAB; Wang, Haipeng [JLAB; Zhang, Yuhong [JLAB

2013-06-01T23:59:59.000Z

176

Recent Progress of RF Cavity Study at Mucool Test Area  

SciTech Connect (OSTI)

Summar of presentation is: (1) MTA is a multi task working space to investigate RF cavities for R&D of muon beam cooling channel - (a) Intense 400 MeV H{sup -} beam, (b) Handle hydrogen (flammable) gas, (c) 5 Tesla SC solenoid magnet, (d) He cryogenic/recycling system; (2) Pillbox cavity has been refurbished to search better RF material - Beryllium button test will be happened soon; (3) E x B effect has been tested in a box cavity - Under study (result seems not to be desirable); (4) 201 MHz RF cavity with SRF cavity treatment has been tested at low magnetic field - (a) Observed some B field effect on maximum field gradient and (b) Further study is needed (large bore SC magnet will be delivered end of 2011); and (5) HPRF cavity beam test has started - (a) No RF breakdown observed and (b) Design a new HPRF cavity to investigate more plasma loading effect.

Yonehara, Katsuya; /Fermilab

2011-12-02T23:59:59.000Z

177

DESIGN OF A DC/RF PHOTOELECTRON GUN.  

SciTech Connect (OSTI)

An integrated dc/rf photoelectron gun produces a low-emittance beam by first rapidly accelerating electrons at a high gradient during a short ({approx}1 ns), high-voltage pulse, and then injecting the electrons into an rf cavity for subsequent acceleration. Simulations show that significant improvement of the emittance appears when a high field ({approx} 0.5-1 GV/m) is applied to the cathode surface. An adjustable dc gap ({le} 1 mm) which can be integrated with an rf cavity is designed for initial testing at the Injector Test Stand at Argonne National Laboratory using an existing 70-kV pulse generator. Plans for additional experiments of an integrated dc/rf gun with a 250-kV pulse generator are being made.

YU,D.NEWSHAM,Y.SMIRONOV,A.YU,J.SMEDLEY,J.SRINIVASAN RAU,T.LEWELLEN,J.ZHOLENTS,A.

2003-05-12T23:59:59.000Z

178

BN/Graphene/BN Transistors for RF Applications  

E-Print Network [OSTI]

In this letter, we demonstrate the first BN/graphene/BN field-effect transistor for RF applications. This device structure can preserve the high mobility and the high carrier velocity of graphene, even when it is sandwiched ...

Taychatanapat, Thiti

179

ANALYZING SURFACE ROUGHNESS DEPENDENCE OF LINEAR RF LOSSES  

SciTech Connect (OSTI)

Topographic structure on Superconductivity Radio Frequency (SRF) surfaces can contribute additional cavity RF losses describable in terms of surface RF reflectivity and absorption indices of wave scattering theory. At isotropic homogeneous extent, Power Spectrum Density (PSD) of roughness is introduced and quantifies the random surface topographic structure. PSD obtained from different surface treatments of niobium, such Buffered Chemical Polishing (BCP), Electropolishing (EP), Nano-Mechanical Polishing (NMP) and Barrel Centrifugal Polishing (CBP) are compared. A perturbation model is utilized to calculate the additional rough surface RF losses based on PSD statistical analysis. This model will not consider that superconductor becomes normal conducting at fields higher than transition field. One can calculate the RF power dissipation ratio between rough surface and ideal smooth surface within this field range from linear loss mechanisms.

Reece, Charles E. [JLAB; Kelley, Michael J. [JLAB, W& M College; Xu, Chen [JLAB, W& M College

2012-09-01T23:59:59.000Z

180

Test estructural i predictiu per a circuits RF CMOS.  

E-Print Network [OSTI]

??En aquesta tesi s'ha desenvolupat una tcnica de test que permet testar un LNA i un mesclador, situats en el capal RF d'un receptor CMOS, (more)

Suenaga Portugus, Kay

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "division head rf" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Measurement of current distribution on RF coils using MR imaging  

E-Print Network [OSTI]

MEASUREMENT OF CURRENT DISTRIBUTION ON RF COILS USING MR IMAGING A Thesis by YU WU Submitted to the Office of Graduate Studies of Texas ARM University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE December... 1993 Major Subject' Electrical Engineering MEASUREMENT OF CURRENT DISTRIBUTION ON RF COILS USING MR IMAGING A Thesis by YU WU Submitted to Texas ASM University in partial fulfillment of the requirments for the degree of MASTER OF SCIENCE...

Wu, Yu

1993-01-01T23:59:59.000Z

182

RF-MEMS Switched Varactors for Medium Power Applications  

E-Print Network [OSTI]

In RF (Radio Frequency) domain, one of the limitations of using MEMS (Micro Electromechanical Systems) switching devices for medium power applications is RF power. Failure phenomena appear even for 500 mW. A design of MEMS switched capacitors with an enhanced topology is presented in this paper to prevent it. This kind of device and its promising performances will serve to fabricate a MEMS based phase shifter able to work under several watts.

Maury, F; Crunteanu, A; Conseil, F; Blondy, P

2008-01-01T23:59:59.000Z

183

R&D ERL: High power RF systems  

SciTech Connect (OSTI)

The Energy Recovery Linac (ERL) project, now under construction at Brookhaven National Laboratory, requires two high power RF systems. The first RF system is for the 703.75 MHz superconducting electron gun. The RF power from this system is used to drive nearly half an Ampere of beam current to 2.5 MeV. There is no provision to recover any of this energy so the minimum amplifier power is 1 MW. It consists of 1 MW CW klystron, transmitter and power supplies, 1 MW circulator, 1 MW dummy load and a two-way power splitter. The second RF system is for the 703.75 MHz superconducting cavity. The system accelerates the beam to 54.7 MeV and recovers this energy. It will provide up to 50 kW of CW RF power to the cavity. It consists of 50 kW transmitter, circulator, and dummy load. This paper describes the two high power RF systems and presents the test data for both.

Zaltsman, A.

2010-01-15T23:59:59.000Z

184

High power RF systems for the BNL ERL project  

SciTech Connect (OSTI)

The Energy Recovery Linac (ERL) project, now under construction at Brookhaven National Laboratory, requires two high power RF systems. The first RF system is for the 703.75 MHz superconducting electron gun. The RF power from this system is used to drive nearly half an Ampere of beam current to 2 MeV. There is no provision to recover any of this energy so the minimum amplifier power is 1 MW. It consists of 1 MW CW klystron, transmitter and power supplies, 1 MW circulator, 1 MW dummy load and a two-way power splitter. The second RF system is for the 703.75 MHz superconducting cavity. The system accelerates the beam to 54.7 MeV and recovers this energy. It will provide up to 50 kW of CW RF power to the cavity. It consists of 50 kW transmitter, circulator, and dummy load. This paper describes the two high power RF systems and presents the test data for both.

Zaltsman, A.; Lambiase, R.

2011-03-28T23:59:59.000Z

185

COMPARISON OF RF CAVITY TRANSPORT MODELS FOR BBU SIMULATIONS  

SciTech Connect (OSTI)

The transverse focusing effect in RF cavities plays a considerable role in beam dynamics for low-energy beamline sections and can contribute to beam breakup (BBU) instability. The purpose of this analysis is to examine RF cavity models in simulation codes which will be used for BBU experiments at Jefferson Lab and improve BBU simulation results. We review two RF cavity models in the simulation codes elegant and TDBBU (a BBU simulation code developed at Jefferson Lab). elegant can include the Rosenzweig-Serafini (R-S) model for the RF focusing effect. Whereas TDBBU uses a model from the code TRANSPORT which considers the adiabatic damping effect, but not the RF focusing effect. Quantitative comparisons are discussed for the CEBAF beamline. We also compare the R-S model with the results from numerical simulations for a CEBAF-type 5-cell superconducting cavity to validate the use of the R-S model as an improved low-energy RF cavity transport model in TDBBU. We have implemented the R-S model in TDBBU. It will improve BBU simulation results to be more matched with analytic calculations and experimental results.

Ilkyoung Shin,Byung Yunn,Todd Satogata,Shahid Ahmed

2011-03-01T23:59:59.000Z

186

Community Development Department Building & Safety Division  

E-Print Network [OSTI]

BUILDING, RESIDENTIAL AND GREEN BUILDING CODES, AMENDING FREMONT MUNICIPAL CODE TITLE vn (BUILDING TO ENERGY REGULATIONS THE 2010 CALIFORNIA,GREEN BUILDING CODE The City of Fremont proposed to adopt local................ Community Development Department Building & Safety Division 39550 Liberty Street

187

EARTH SCIENCES DIVISION ANNUAL REPORT 1978  

E-Print Network [OSTI]

of electrolytes: IX, rare earth chlorides, nitrates, andU E OF AQUIFER RESPONSE TO EARTH TIDES AS A MEANS O F SLawrence Berkeley Laboratory, Earth Sciences Division, 1977.

Authors, Various

2012-01-01T23:59:59.000Z

188

Financial Services Division of Administration & Finance  

E-Print Network [OSTI]

Financial Services Division of Administration & Finance (657) 278-2512 / Fax (714) 278: May Wong / Financial Services (CP-300). Instructions are at Questions? Email Directive11@fullerton.eduwww.finance

de Lijser, Peter

189

INDIVIDUAL DISCIPLINES: HUMAN RESOURCES DIVISION MARKETING  

E-Print Network [OSTI]

INDIVIDUAL DISCIPLINES: HUMAN RESOURCES DIVISION MARKETING AND RECRUITMENT CAMPAIGN STAFF .:|:. Client: Y. Mankin, Computing Sciences #12;DESIGN MAIN MENU 1 2 344 4 5WEBSITES Joint BioEnergy Institute

190

EARTH SCIENCES DIVISION ANNUAL REPORT 1978  

E-Print Network [OSTI]

of Energy's Division of Geothermal Energy has undertaken aand Ghormley, E. L. , 1976. Geothermal energy conversion andi a , Mexico, i n Geothermal energy: a n o v e l t y becomes

Authors, Various

2012-01-01T23:59:59.000Z

191

Energy Research and Development Division STAFF REPORT  

E-Print Network [OSTI]

Energy Research and Development Division STAFF REPORT NATURAL GAS RESEARCH AND DEVELOPMENT 2013 Annual Report CALIFORNIA ENERGY COMMISSION Edmund G. Brown Jr., Governor OCTOBER 2013 CEC5002013111 #12; CALIFORNIA ENERGY COMMISSION Linda Schrupp Primary Authors Prepared for: California

192

Robert C. Holub Undergraduate Division Dean  

E-Print Network [OSTI]

less than coherent, consisting of a handful of interdisciplinary undergraduate programs (the UGIS part is the location of these various programs. The UGIS majors are located within the division (except in one case

Mofrad, Mohammad R. K.

193

ORNL/CON-224 Energy Division  

E-Print Network [OSTI]

ORNL/CON-224 Energy Division U.S. HEAT PUMP RESEARCH AND DEVELOPMENT PROJECTS 1976-1986 K. H ......................................... 2 3. ORGANIZATIONS SPONSORING HEAT PUMP ................. RESEARCH AND DEVELOPMENT ............................................... 223 9. NOVEL HEAT PUMP CYCLES ............ ........................... 228 10. CROSSCUTTING PROJECTS

Oak Ridge National Laboratory

194

Materials Sciences Division Integrated Safety Management Plan  

E-Print Network [OSTI]

Materials Sciences Division Integrated Safety Management Plan Revised: February 9, 2012 Prepared by: signed Feb. 9, 2012 Rick Kelly, Facility/EH&S Manager Submitted by: signed Feb. 9, 2012 Miquel Salmeron.1 RESPONSIBILITY AND AUTHORITY THROUGH LINE MANAGEMENT............................................................5

195

Earth Sciences Division annual report 1989  

SciTech Connect (OSTI)

This Annual Report presents summaries of selected representative research activities from Lawrence Berkeley Laboratory grouped according to the principal disciplines of the Earth Sciences Division: Reservoir Engineering and Hydrology, Geology and Geochemistry, and Geophysics and Geomechanics. We are proud to be able to bring you this report, which we hope will convey not only a description of the Division's scientific activities but also a sense of the enthusiasm and excitement present today in the Earth Sciences.

Not Available

1990-06-01T23:59:59.000Z

196

Weapons Experiments Division Explosives Operations Overview  

SciTech Connect (OSTI)

Presentation covers WX Division programmatic operations with a focus on JOWOG-9 interests. A brief look at DARHT is followed by a high level overview of explosives research activities currently being conducted within in the experimental groups of WX-Division. Presentation covers more emphasis of activities and facilities at TA-9 as these efforts have been more traditionally aligned with ongoing collaborative explosive exchanges covered under JOWOG-9.

Laintz, Kenneth E. [Los Alamos National Laboratory

2012-06-19T23:59:59.000Z

197

NO. REV. NO. Systems Division DATE  

E-Print Network [OSTI]

-~ NO. REV. NO. EATM-15 PAGE OF ~ Systems Division DATE EASEP /PSEP Solar Panel Development Design+"'--.:L'_;;;J....;::::::..··-=·~::!!:!!!e::...._ K. Hsi #12;NO. REV. NO. EATM-15 EASEP/PSEP Solar Panel Development ~ Systems Division Design of the EASE-PSEP Solar Panel Array~PA::G:,:E:..::=l=~o:F~=2=7= DATE 20 Nov. 1968 1. 0 SUMMARY Electrical power

Rathbun, Julie A.

198

Earth Sciences Division collected abstracts: 1980  

SciTech Connect (OSTI)

This report is a compilation of abstracts of papers, reports, and talks presented during 1980 at national and international meetings by members of the Earth Sciences Division, Lawrence Livermore National Laboratory. The arrangement is alphabetical (by author). For a given report, a bibliographic reference appears under the name of each coauthor, but the abstract itself is given only under the name of the first author (indicated in capital letters) or the first Earth Sciences Division author.

Henry, A.L.; Hornady, B.F. (eds.)

1981-10-15T23:59:59.000Z

199

Organization of ISI by Divisions and Constituent Units Information Sciences Division  

E-Print Network [OSTI]

Biological Sciences Division Agricultural and Ecological Research Unit Human Genetics Unit Biological Unit Canteen Security Unit Medical Welfare Unit Telephone Unit Transport Unit Guest House Audio Visual

Bandyopadhyay, Antar

200

UNIVERSITY OF CALIFORNIA, SANTA CRUZ DIVISION OF GRADUATE STUDIES  

E-Print Network [OSTI]

and Graduate Division coordination of efforts to increase graduate support and postdoctoral placement through

California at Santa Cruz, University of

Note: This page contains sample records for the topic "division head rf" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Section III, Division 5 - Development And Future Directions  

SciTech Connect (OSTI)

This paper provides commentary on a new division under Section III of the ASME Boiler and Pressure Vessel (BPV) Code. This new Division 5 has an issuance date of November 1, 2011 and is part of the 2011 Addenda to the 2010 Edition of the BPV Code. The new Division covers the rules for the design, fabrication, inspection and testing of components for high temperature nuclear reactors. Information is provided on the scope and need for Division 5, the structure of Division 5, where the rules originated, the various changes made in finalizing Division 5, and the future near-term and long-term expectations for Division 5 development.

Morton, Dana K. [Idaho National Laboratory (INL)] [Idaho National Laboratory (INL); Jetter, Robert I [Consultant] [Consultant; Nestell, James E. [MPR Associates Inc.] [MPR Associates Inc.; Burchell, Timothy D [ORNL] [ORNL; Sham, Sam [ORNL] [ORNL

2012-01-01T23:59:59.000Z

202

Reactor Pressure Vessel Head Packaging & Disposal  

SciTech Connect (OSTI)

Reactor Pressure Vessel (RPV) Head replacements have come to the forefront due to erosion/corrosion and wastage problems resulting from the susceptibility of the RPV Head alloy steel material to water/boric acid corrosion from reactor coolant leakage through the various RPV Head penetrations. A case in point is the recent Davis-Besse RPV Head project, where detailed inspections in early 2002 revealed significant wastage of head material adjacent to one of the Control Rod Drive Mechanism (CRDM) nozzles. In lieu of making ASME weld repairs to the damaged head, Davis-Besse made the decision to replace the RPV Head. The decision was made on the basis that the required weld repair would be too extensive and almost impractical. This paper presents the packaging, transport, and disposal considerations for the damaged Davis-Besse RPV Head. It addresses the requirements necessary to meet Davis Besse needs, as well as the regulatory criteria, for shipping and burial of the head. It focuses on the radiological characterization, shipping/disposal package design, site preparation and packaging, and the transportation and emergency response plans that were developed for the Davis-Besse RPV Head project.

Wheeler, D. M.; Posivak, E.; Freitag, A.; Geddes, B.

2003-02-26T23:59:59.000Z

203

Biology Division progress report, October 1, 1991--September 30, 1993  

SciTech Connect (OSTI)

This Progress Report summarizes the research endeavors of the Biology Division of the Oak Ridge National Laboratory during the period October 1, 1991, through September 30, 1993. The report is structured to provide descriptions of current activities and accomplishments in each of the Division`s major organizational units. Lists of information to convey the entire scope of the Division`s activities are compiled at the end of the report.

Hartman, F.C.; Cook, J.S.

1993-10-01T23:59:59.000Z

204

RF-Plasma Source Commissioning in Indian Negative Ion Facility  

SciTech Connect (OSTI)

The Indian program of the RF based negative ion source has started off with the commissioning of ROBIN, the inductively coupled RF based negative ion source facility under establishment at Institute for Plasma research (IPR), India. The facility is being developed under a technology transfer agreement with IPP Garching. It consists of a single RF driver based beam source (BATMAN replica) coupled to a 100 kW, 1 MHz RF generator with a self excited oscillator, through a matching network, for plasma production and ion extraction and acceleration. The delivery of the RF generator and the RF plasma source without the accelerator, has enabled initiation of plasma production experiments. The recent experimental campaign has established the matching circuit parameters that result in plasma production with density in the range of 0.5-1x10{sup 18}/m{sup 3}, at operational gas pressures ranging between 0.4-1 Pa. Various configurations of the matching network have been experimented upon to obtain a stable operation of the set up for RF powers ranging between 25-85 kW and pulse lengths ranging between 4-20 s. It has been observed that the range of the parameters of the matching circuit, over which the frequency of the power supply is stable, is narrow and further experiments with increased number of turns in the coil are in the pipeline to see if the range can be widened. In this paper, the description of the experimental system and the commissioning data related to the optimisation of the various parameters of the matching network, to obtain stable plasma of required density, are presented and discussed.

Singh, M. J.; Bandyopadhyay, M.; Yadava, Ratnakar; Chakraborty, A. K. [ITER- India, Institute for Plasma Research, A-29, Sector 25, GIDC, Gandhinagar, Gujrat (India); Bansal, G.; Gahlaut, A.; Soni, J.; Kumar, Sunil; Pandya, K.; Parmar, K. G.; Sonara, J. [Institute for Plasma Research, Bhat Gandhinagar, Gujrat (India); Kraus, W.; Heinemann, B.; Riedl, R.; Obermayer, S.; Martens, C.; Franzen, P.; Fantz, U. [Max-Planck-Institut fuer Plasmaphysik, Boltzmannstrasse 2, D-85748 Garching (Germany)

2011-09-26T23:59:59.000Z

205

Energy Technology Division research summary - 1999.  

SciTech Connect (OSTI)

The Energy Technology Division provides materials and engineering technology support to a wide range of programs important to the US Department of Energy. As shown on the preceding page, the Division is organized into ten sections, five with concentrations in the materials area and five in engineering technology. Materials expertise includes fabrication, mechanical properties, corrosion, friction and lubrication, and irradiation effects. Our major engineering strengths are in heat and mass flow, sensors and instrumentation, nondestructive testing, transportation, and electromechanics and superconductivity applications. The Division Safety Coordinator, Environmental Compliance Officers, Quality Assurance Representative, Financial Administrator, and Communication Coordinator report directly to the Division Director. The Division Director is personally responsible for cultural diversity and is a member of the Laboratory-wide Cultural Diversity Advisory Committee. The Division's capabilities are generally applied to issues associated with energy production, transportation, utilization, or conservation, or with environmental issues linked to energy. As shown in the organization chart on the next page, the Division reports administratively to the Associate Laboratory Director (ALD) for Energy and Environmental Science and Technology (EEST) through the General Manager for Environmental and Industrial Technologies. While most of our programs are under the purview of the EEST ALD, we also have had programs funded under every one of the ALDs. Some of our research in superconductivity is funded through the Physical Research Program ALD. We also continue to work on a number of nuclear-energy-related programs under the ALD for Engineering Research. Detailed descriptions of our programs on a section-by-section basis are provided in the remainder of this book.

NONE

1999-03-31T23:59:59.000Z

206

Transportation Energy Technology DivisionEnergy Technology Division --TribologyTribology  

E-Print Network [OSTI]

-frictionless carbon coatings to the components when appropriate · Develop and evaluate polymer composite materials to their prototype using Hitco C/C composite and anodized aluminum material combination. · Fabricated and evaluatedTransportation Materials Energy Technology DivisionEnergy Technology Division -- Tribology

207

Division of Student Life 20122013 ANNUAL REPORT Division of Student Life  

E-Print Network [OSTI]

1 Division of Student Life 20122013 ANNUAL REPORT Division of Student Life #12;2 The Power to Transform: Expectations of Our Students At UWMadison, we know that the Wisconsin Experience has learning inside and outside the classroom to make the world a better place?" In the eight departments

208

Phase Stable RF-over-fiber Transmission using Heterodyne Interferometry  

SciTech Connect (OSTI)

New scientific applications require phase-stabilized RF distribution to multiple remote locations. These include phased-array radio telescopes and short pulse free electron lasers. RF modulated onto a CW optical carrier and transmitted via fiber is capable of low noise, but commercially available systems aren't long term stable enough for these applications. Typical requirements are for less than 50fs long term temporal stability between receivers, which is 0.05 degrees at 3GHz. Good results have been demonstrated for RF distribution schemes based on transmission of short pulses, but these require specialized free-space optics and high stability mechanical infrastructure. We report a method which uses only standard telecom optical and RF components, and achieves less than 20fs RMS error over 300m of standard single-mode fiber. We demonstrate stable transmission of 3GHz over 300m of fiber with less than 0.017 degree (17fs) RMS phase error. An interferometer measures optical phase delay, providing information to a feed-forward correction of RF phase.

Wilcox, R.; Byrd, J. M.; Doolittle, L.; Huang, G.; Staples, J. W.

2010-01-02T23:59:59.000Z

209

RF Power Upgrade for CEBAF at Jefferson Laboratory  

SciTech Connect (OSTI)

Jefferson Laboratory (JLab) is currently upgrading the 6GeV Continuous Electron Beam Accelerator Facility (CEBAF) to 12GeV. As part of the upgrade, RF systems will be added, bringing the total from 340 to 420. Existing RF systems can provide up to 6.5 kW of CW RF at 1497 MHZ. The 80 new systems will provide increased RF power of up to 13 kW CW each. Built around a newly designed and higher efficiency 13 kW klystron developed for JLab by L-3 Communications, each new RF chain is a completely revamped system using hardware different than our present installations. This paper will discuss the main components of the new systems including the 13 kW klystron, waveguide isolator, and HV power supply using switch-mode technology. Methodology for selection of the various components and results of initial testing will also be addressed. Notice: Authored by Jefferson Science Associates, LLC under U.S. DOE Contract No. DE-AC05-06OR23177. The U.S. Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce this manuscript for U.S. Government purposes.

Andrew Kimber,Richard Nelson

2011-03-01T23:59:59.000Z

210

805 MHz and 201 MHz RF cavity development for MUCOOL  

SciTech Connect (OSTI)

A muon cooling channel calls for very high acceleratinggradient RF structures to restore the energy lost by muons in theabsorbers. The RF structures have to be operated in a strong magneticfield and thus the use of superconducting RF cavities is excluded. Toachieve a high shunt impedance while maintaining a large enough apertureto accommodate a large transverse emittance muon beam, the cavity designadopted is a pillbox-like geometry with thin Be foils to terminate theelectromagnetic field at the cavity iris. The possibility of using gridsof thin-walled metallic tubes for the termination is also being explored.Many of the RF-related issues for muon cooling channels are being studiedboth theoretically and experimentally using an 805 MHz cavity that has apillbox-like geometry with thin Be windows to terminate the cavityaperture. The design and performance of this cavity are reported here.High-power RF tests of the 805 MHz cavity are in progress at Lab G inFermilab. The cavity has exceeded its design gradient of 30 MV/m,reaching 34 MV/m without external magnetic field. No surface damage wasobserved at this gradient. The cavity is currently under conditioning atLab G with an external magnetic field of 2.5 T. We also present here a201 MHz cavity design for muoncooling channels. The proposed cavitydesign is also suitable for use in a proof-of-principle Muon IonizationCooling Experiment (MICE).

DLi@lbl.gov

2002-10-10T23:59:59.000Z

211

Redelegation/Designation Order No. 00-022.06A to Anthony H. Montoya as head  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared at 278, 298,NIST 800-53 RevisionDivision and TeamOfficeHead ofof

212

Nuclear Chemistry Division annual report FY83  

SciTech Connect (OSTI)

The purpose of the annual reports of the Nuclear Chemistry Division is to provide a timely summary of research activities pursued by members of the Division during the preceding year. Throughout, details are kept to a minimum; readers desiring additional information are encouraged to read the referenced documents or contact the authors. The Introduction presents an overview of the Division's scientific and technical programs. Next is a section of short articles describing recent upgrades of the Division's major facilities, followed by sections highlighting scientific and technical advances. These are grouped under the following sections: nuclear explosives diagnostics; geochemistry and environmental sciences; safeguards technology and radiation effect; and supporting fundamental science. A brief overview introduces each section. Reports on research supported by a particular program are generally grouped together in the same section. The last section lists the scientific, administrative, and technical staff in the Division, along with visitors, consultants, and postdoctoral fellows. It also contains a list of recent publications and presentations. Some contributions to the annual report are classified and only their abstracts are included in this unclassified portion of the report (UCAR-10062-83/1); the full article appears in the classified portion (UCAR-10062-83/2).

Struble, G. (ed.)

1983-01-01T23:59:59.000Z

213

Energy Technology Division research summary -- 1994  

SciTech Connect (OSTI)

Research funded primarily by the NRC is directed toward assessing the roles of cyclic fatigue, intergranular stress corrosion cracking, and irradiation-assisted stress corrosion cracking on failures in light water reactor (LWR) piping systems, pressure vessels, and various core components. In support of the fast reactor program, the Division has responsibility for fuel-performance modeling and irradiation testing. The Division has major responsibilities in several design areas of the proposed International Thermonuclear Experimental Reactor (ITER). The Division supports the DOE in ensuring safe shipment of nuclear materials by providing extensive review of the Safety Analysis Reports for Packaging (SARPs). Finally, in the nuclear area they are investigating the safe disposal of spent fuel and waste. In work funded by DOE`s Energy Efficiency and Renewable Energy, the high-temperature superconductivity program continues to be a major focal point for industrial interactions. Coatings and lubricants developed in the division`s Tribology Section are intended for use in transportation systems of the future. Continuous fiber ceramic composites are being developed for high-performance heat engines. Nondestructive testing techniques are being developed to evaluate fiber distribution and to detect flaws. A wide variety of coatings for corrosion protection of metal alloys are being studied. These can increase lifetimes significant in a wide variety of coal combustion and gasification environments.

Not Available

1994-09-01T23:59:59.000Z

214

Enhancement of Corium Coolability with CRGTs in the Lower Head of a BWR  

SciTech Connect (OSTI)

A series of experiments were preformed in the POMECO (Porous Media Coolability) and the COMECO (Corium Melt Coolability) test facilities at the Nuclear Power Safety Division of the Royal Institute of Technology, Stockholm. During the experiments particulate debris beds and molten pools were cooled by establishing a water layer above them. The main aim of the experiments was to investigate the additional coolability capacity offered by the Control Rod Guide Tubes (CRGTs) in the lower head of the Reactor Pressure Vessel (RPV) of a Boiling Water Reactor (BWR). Each CRGT has a substantial heat transfer area and there is large number of these tubes in the BWR lower head. The coolant is supplied to the RPV via the CRGTs during the normal reactor operation and this coolant flow could be maintained during a severe accident. The primary objective of the experimental program was to obtain data on the heat removal capacity, offered by a CRGT. This paper presents results of the experiments. (authors)

Sehgal, Bal Raj; Jasiulevicius, Audrius; Konovalikhin, Maxim J. [Nuclear Power Safety Division, Royal Institute of Technology, Stockholm Drottning Kristinas vaeg 33A, SE-10044, Stockholm (Sweden)

2004-07-01T23:59:59.000Z

215

RF Pulse compression stabilization at the CTF3 CLIC test facility  

E-Print Network [OSTI]

In the CTF3 accelerator, the RF produced by each of ten 3 GHz klystrons goes through waveguides, RF pulse compressors and splitters. The RF phase and power transformation of these devices depend on their temperature. The quantitative effect of the room temperature variation on the RF was measured. It is the major source of undesired changes during the CTF3 operation. An RF phaseloop and a compressor temperature stabilization are developed to suppress the phase fluctuation and the power profile change due to the temperature variation. The implementation is transparent for operators, it does not limit anyhow the flexibility of RF manipulations. Expected and measured suppression characteristics will be given.

Dubrovskiy, Alexey

2010-01-01T23:59:59.000Z

216

HeadLock : wide-range head pose estimation for low resolution video  

E-Print Network [OSTI]

This thesis focuses on data mining technologies to extract head pose information from low resolution video recordings. Head pose, as an approximation of gaze direction, is a key indicator of human behavior and interaction. ...

DeCamp, Philip (Philip James)

2008-01-01T23:59:59.000Z

217

Theory and Practice of Cavity RF Test Systems  

SciTech Connect (OSTI)

Over the years Jefferson Lab staff members have performed about 2500 cold cavity tests on about 500 different superconducting cavities. Most of these cavities were later installed in 73 different cryomodules, which were used in three different accelerators. All of the cavities were tested in our vertical test area. About 25% of the cryomodules were tested in our cryomodule test facility and later commissioned in an accelerator. The remainder of the cryomodules were tested and commissioned after they were installed in their respective accelerator. This paper is an overview which should provide a practical background in the RF systems used to test the cavities as well as provide the mathematics necessary to convert the raw pulsed or continuous wave RF signals into useful information such as gradient, quality factor, RF-heat loads and loaded Q?s. Additionally, I will provide the equations necessary for determining the measurement error associated with these values.

Tom Powers

2006-08-28T23:59:59.000Z

218

HOM Coupler Optimisation for the Superconducting RF Cavities in ESS  

E-Print Network [OSTI]

The European Spallation Source (ESS) will be the worlds most powerful next generation neutron source. It consists of a linear accelerator, target, and instruments for neutron experiments. The linac is designed to accelerate protons to a ?nal energy of 2.5 GeV, with an average design beam power of 5 MW, for collision with a target used to produce a high neutron ?ux. A section of the linac will contain Superconducting RF (SCRF) cavities designed at 704 MHz. Beam induced HOMs in these cavities may drive the beam unstable and increase the cryogenic load, therefore HOM couplers are installed to provide suf?cient damping. Previous studies have shown that these couplers are susceptible to multipacting, a resonant process which can absorb RF power and lead to heating effects. This paper will show how a coupler suffering from multipacting has been redesigned to limit this effect. Optimisation of the RF damping is also discussed.

Ainsworth, R; Calaga, R

2012-01-01T23:59:59.000Z

219

A computer program for HVDC converter station RF noise calculations  

SciTech Connect (OSTI)

HVDC converter station operations generate radio frequency (RF) electromagnetic (EM) noise which could interfere with adjacent communication and computer equipment, and carrier system operations. A generic Radio Frequency Computer Analysis Program (RAFCAP) for calculating the EM noise generated by valve ignition of a converter station has been developed as part of a larger project. The program calculates RF voltages, currents, complex power, ground level electric field strength and magnetic flux density in and around an HVDC converter station. The program requires the converter station network to be represented by frequency dependent impedance functions. Comparisons of calculated and measured values are given for an actual HVDC station to illustrate the validity of the program. RAFCAP is designed to be used by engineers for the purpose of calculating the RF noise produced by the igniting of HVDC converter valves.

Kasten, D.G.; Caldecott, R.; Sebo, S.A. (Ohio State Univ., Columbus, OH (United States). Dept. of Electrical Engineering); Liu, Y. (Virginia Polytechnic Inst. State Univ., Blacksburg, VA (United States). Bradley Dept. of Electrical Engineering)

1994-04-01T23:59:59.000Z

220

Chemical Technology Division annual technical report, 1996  

SciTech Connect (OSTI)

CMT is a diverse technical organization with principal emphases in environmental management and development of advanced energy sources. It conducts R&D in 3 general areas: development of advanced power sources for stationary and transportation applications and for consumer electronics, management of high-level and low-level nuclear wastes and hazardous wastes, and electrometallurgical treatment of spent nuclear fuel. The Division also performs basic research in catalytic chemistry involving molecular energy resources, mechanisms of ion transport in lithium battery electrolytes, materials chemistry of electrified interfaces and molecular sieves, and the theory of materials properties. It also operates the Analytical Chemistry Laboratory, which conducts research in analytical chemistry and provides analytical services for programs at ANL and other organizations. Technical highlights of the Division`s activities during 1996 are presented.

NONE

1997-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "division head rf" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Life Sciences Division annual report, 1988  

SciTech Connect (OSTI)

This report summarizes the research and development activities of Los Alamos National Laboratory's Life Sciences Division for the calendar year 1988. Technical reports related to the current status of projects are presented in sufficient detail to permit the informed reader to assess their scope and significance. Summaries useful to the casual reader desiring general information have been prepared by the Group Leaders and appear in each group overview. Investigators on the staff of the Life Sciences Division will be pleased to provide further information.

Marrone, B.L.; Cram, L.S. (comps.)

1989-04-01T23:59:59.000Z

222

The MuCool Test Area and RF Program  

SciTech Connect (OSTI)

The MuCool RF Program focuses on the study of normal conducting RF structures operating in high magnetic field for applications in muon ionization cooling for Neutrino Factories and Muon Colliders. This paper will give an overview of the program, which will include a description of the test facility and its capabilities, the current test program, and the status of a cavity that can be rotated in the magnetic field which allows for a more detailed study of the maximum stable operating gradient vs. magnetic field strength and angle.

Bross, A D; Jansson, A; Moretti, A; Yonehara, K; Huang, D; Torun, Y; Li, D; Norem, J; Palmer, R B; Stratakis, D

2010-05-01T23:59:59.000Z

223

The Los Alamos VXI-based modular RF control system  

SciTech Connect (OSTI)

This paper describes the design and implementation of the Los Alamos modular RF control system, which provides high-performance feedback and/or feedforward control of RF accelerator cavities. This is a flexible, modular control system which has been realized in the industry-standard VXI cardmodular format. A wide spectrum of system functionality can be accommodated simply by incorporating only those modules and features required for a particular application. The fundamental principles of the design approach are discussed. Details of the VXI implementation are given, including the system architecture and interfaces, performance capabilities, and available features.

Jachim, S.P.; Ziomek, C.; Natter, E.F.; Regan, A.H.; Hill, J.; Eaton, L.; Gutscher, W.D.; Curtin, M.; Denney, P.; Hansberry, E.; Brooks, T.

1993-06-01T23:59:59.000Z

224

The Los Alamos VXI-based modular RF control system  

SciTech Connect (OSTI)

This paper describes the design and implementation of the Los Alamos modular RF control system, which provides high-performance feedback and/or feedforward control of RF accelerator cavities. This is a flexible, modular control system which has been realized in the industry-standard VXI cardmodular format. A wide spectrum of system functionality can be accommodated simply by incorporating only those modules and features required for a particular application. The fundamental principles of the design approach are discussed. Details of the VXI implementation are given, including the system architecture and interfaces, performance capabilities, and available features.

Jachim, S.P.; Ziomek, C.; Natter, E.F.; Regan, A.H.; Hill, J.; Eaton, L.; Gutscher, W.D.; Curtin, M.; Denney, P.; Hansberry, E.; Brooks, T.

1993-01-01T23:59:59.000Z

225

Plasma Acceleration from RF Discharge in Dielectric Capillary  

SciTech Connect (OSTI)

Plasma acceleration from rf discharge in dielectric capillary was demonstrated. Observed plasma flow had ion energies of approximately 100 eV and electron energies of approximately 20 eV. The discharge was powered by a MHz-range rf generator and fed by Ar. Experimental results indicate possible validity of assumptions about formation of a potential difference at the open end of the capillary and presence of hot electron fraction in the capillary discharge. Simplicity and small dimensions of the source are attractive for micro-propulsion applications.

A. Dunaevsky; Y. Raitses; N. J. Fisch

2005-08-09T23:59:59.000Z

226

CONCEPTUAL DESIGN OF A BRIGHT ELECTRON INJECTOR BASED ON A LASER-DRIVEN PHOTOCATHODE RF ELECTRON GUN  

E-Print Network [OSTI]

Photocathode RF Electron Gun S. Chattopadhyay, Y.J. Chen, D.PHOTOCATHODE RF ELECTRON GUN' S. Chnttopndhyny. Y.J. Chen (Photocathode RF Electron Gun S. Chattopadhyay, Y.I. Chen, D.

Chattopadhyay, S.

2010-01-01T23:59:59.000Z

227

Comparison of electromagnetic, thermal and mechanical calculations with rf test results in rf-dipole deflecting/crabbing cavities  

SciTech Connect (OSTI)

The current requirements of higher gradients and strict dimensional constraints in the emerging applications have required the designing of compact deflecting and crabbing rf structures. The superconducting rf-dipole cavity is one of the first novel compact designs with attractive properties such as higher gradients, higher shunt impedance and widely separated higher order modes. The recent tests performed on proof-of-principle designs of the rf-dipole geometry at 4.2 K and 2.0 K in the vertical test area at Jefferson Lab have proven the designs to achieve higher gradients with higher intrinsic quality factors and easily processed multipacting conditions. The cavity characteristics, such as pressure sensitivity and Lorentz force detuning, were studied using ANSYS before the fabrication. These characteristics were measured during the cavity test. The comparison between the simulation and the measurement provides insight how the simulation can be used for design and fabrication of future cavities.

Park, HyeKyoung [JLAB, ODU; De Silva, Subashini U. [ODU; Delayen, Jean R. [ODU, JLAB

2013-12-01T23:59:59.000Z

228

Head of Safety 020 7679 1948  

E-Print Network [OSTI]

Head of Safety Paul Stirk 020 7679 1948 (Internal 41948) p.stirk@ucl.ac.uk Deputy Head of Safety & Biological Safety Advisor Jillian Deans 020 7679 1814 (Internal 41814) j.deans@ucl.ac.uk Safety Training Manager Kuen Yip Porter 020 7679 1299 (Internal 41299) k.yip-porter@ucl.ac.uk Safety Advisors Rhona Brown

Guillas, Serge

229

E-Print Network 3.0 - angle rf pulses Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

pulse operating on M: RFx pulse operating on FZ: RF pulses K-Space Scheffler 1999: PDF... " cos() 2 sin2 ( 2) 1st 1st RF pulse 12;E. Wong, BE278, UCSD Winter 2011...

230

Advances in Filter Miniaturization and Design/Analysis of RF MEMS Tunable Filters  

E-Print Network [OSTI]

The main purpose of this dissertation was to address key issues in the design and analysis of RF/microwave filters for wireless applications. Since RF/microwave filters are one of the bulkiest parts of communication systems, their miniaturization...

Sekar, Vikram

2012-10-19T23:59:59.000Z

231

Advances in Broadband RF Sensing for Real-time Control of Plasma-Based Semiconductor Processing  

E-Print Network [OSTI]

to standard RF metrology. The system uses an antenna in the glow discharge to excite the bulk plasma identification of process conditions for standard RF sensing, and 99:5 correct identification of process

Grizzle, Jessy W.

232

E-Print Network 3.0 - accelerating rf station Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

by a 1.25-T -decay channel with phase-rotation via rf (to compress... to beam tests; Test 70-MHz rf cavity (+ 1.25-T magnet) 3 m from target; Characterize ... Source:...

233

Physics Division activities report, 1986--1987  

SciTech Connect (OSTI)

This report summarizes the research activities of the Physics Division for the years 1986 and 1987. Areas of research discussed in this paper are: research on e/sup +/e/sup /minus// interactions; research on p/bar p/ interactions; experiment at TRIUMF; double beta decay; high energy astrophysics; interdisciplinary research; and advanced technology development and the SSC.

Not Available

1987-01-01T23:59:59.000Z

234

Division of Human Resources Termination Of  

E-Print Network [OSTI]

Division of Human Resources Termination Of Domestic Partnership Health Stipend Questions (813) 974 Insurance Stipend will terminate as of the Effective Date on this Termination of Domestic Partnership Health. ______ The Domestic Partnership Declaration attested to and filed by me with USF shall be and is terminated

Meyers, Steven D.

235

ENVIRONMENT, SAFETY, HEALTH, AND QUALITY DIVISION  

E-Print Network [OSTI]

for its scope of work (the prime prepares a site-specific safety plan content and approval form for each Subcontractor Safety: Non-green Work Procedure [SLAC-I-730-0A21C-024].) Project Name PR # SLAC Project ContactsENVIRONMENT, SAFETY, HEALTH, AND QUALITY DIVISION Chapter 42: Subcontractor Safety Site

Wechsler, Risa H.

236

Division of Human Resources Nonresident Alien Federal  

E-Print Network [OSTI]

Division of Human Resources Nonresident Alien Federal Withholding Requirements Questions (813) 974 classified as nonresident aliens for tax purposes with regard to their federal withholding taxes.gov. In brief, the Form W-4 requirements for individuals who are nonresident aliens (NRA) for tax purposes

Meyers, Steven D.

237

Earth Sciences Division annual report 1990  

SciTech Connect (OSTI)

This Annual Report presents summaries of selected representative research activities grouped according to the principal disciplines of the Earth Sciences Division: Reservoir Engineering and Hydrogeology, Geology and Geochemistry, and Geophysics and Geomechanics. Much of the Division`s research deals with the physical and chemical properties and processes in the earth`s crust, from the partially saturated, low-temperature near-surface environment to the high-temperature environments characteristic of regions where magmatic-hydrothermal processes are active. Strengths in laboratory and field instrumentation, numerical modeling, and in situ measurement allow study of the transport of mass and heat through geologic media -- studies that now include the appropriate chemical reactions and the hydraulic-mechanical complexities of fractured rock systems. Of particular note are three major Division efforts addressing problems in the discovery and recovery of petroleum, the application of isotope geochemistry to the study of geodynamic processes and earth history, and the development of borehole methods for high-resolution imaging of the subsurface using seismic and electromagnetic waves. In 1989 a major DOE-wide effort was launched in the areas of Environmental Restoration and Waste Management. Many of the methods previously developed for and applied to deeper regions of the earth will in the coming years be turned toward process definition and characterization of the very shallow subsurface, where man-induced contaminants now intrude and where remedial action is required.

NONE

1991-06-01T23:59:59.000Z

238

DIVISION OF RECREATIONAL SPORTS Personal Training  

E-Print Network [OSTI]

Information Personal Training Policies Waiver Client Data Questionnaire Health Status Questionnaire PersonalDIVISION OF RECREATIONAL SPORTS Personal Training New Client Packet Personal Training Package to Purdue Rec Sports Personal Training Getting Started The information included in this packet is everything

Pittendrigh, Barry

239

Political Science Division Hatfield School of Government  

E-Print Network [OSTI]

Political Science Division Hatfield School of Government Minor in Law & Legal Studies Program, emphasizing the political, social, cultural, and philosophical foundations and impacts of law and legal campus who are interested in the relationship of law to politics, society, and culture. While the core

Bertini, Robert L.

240

Lectures on Linear Algebra over Division Ring  

E-Print Network [OSTI]

In this book i treat linear algebra over division ring. A system of linear equations over a division ring has properties similar to properties of a system of linear equations over a field. However, noncommutativity of a product creates a new picture. Matrices allow two products linked by transpose. Biring is algebra which defines on the set two correlated structures of the ring. As in the commutative case, solutions of a system of linear equations build up right or left vector space depending on type of system. We study vector spaces together with the system of linear equations because their properties have a close relationship. As in a commutative case, the group of automorphisms of a vector space has a single transitive representation on a frame manifold. This gives us an opportunity to introduce passive and active representations. Studying a vector space over a division ring uncovers new details in the relationship between passive and active transformations, makes this picture clearer. Considering of twin representations of division ring in Abelian group leads to the concept of D vector space and their linear map. Based on polyadditive map I considered definition of tensor product of rings and tensor product of D vector spaces.

Aleks Kleyn

2014-10-11T23:59:59.000Z

Note: This page contains sample records for the topic "division head rf" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Division of Student Affairs 107 Conklin North  

E-Print Network [OSTI]

A. Herman graduated from Bowling Green State University's College Student Personnel program in 1990, August 31st to the Office of the Division of Student Affairs, Bowling Green State University, Attn: Beth Bowling Green State University Shelli A. Herman graduated from Bowling Green State University's College

Moore, Paul A.

242

PHYSICS DIVISION ESH BULLETIN 2005-06  

E-Print Network [OSTI]

conducted by the operations staff. Maintenance is work done by the crafts. Work done by Users is considered, and Guests were allowed to conduct hands-on experimental work under the direct supervision of a trained: Work in the Physics Division is broadly categorized as operations, maintenance, and experimental work

243

Student Regulations and Procedures Academic Division  

E-Print Network [OSTI]

Student Regulations and Procedures Academic Division 2007/2008 11 Students Union Code information regarding their course, tuition fees, award ceremonies and other matters www.mmu.ac.uk/academic's Articles of Government (Article 1.1). As prescribed in the Articles of Government (Article 12

244

Student Regulations and Procedures Academic Division  

E-Print Network [OSTI]

Student Regulations and Procedures Academic Division 2007/2008 3 RULES FOR STUDENT CONDUCT fees, award ceremonies and other matters www.mmu.ac.uk/academic/student_regulations.php #12;RULES of Governors in accordance with the following Articles of Government: 7.1.6 Subject to the responsibilities

245

DIVISION S-6--SOIL & WATER MANAGEMENT & CONSERVATION  

E-Print Network [OSTI]

DIVISION S-6--SOIL & WATER MANAGEMENT & CONSERVATION Soil Organic Carbon Sequestration Rates soil column within 20 yr following culti- Carbon sequestration rates, with a change from CT to NT, can in approximately 40 to and returning to the original land cover or other peren- 60 yr. Carbon sequestration rates

246

ENVIRONMENT, SAFETY & HEALTH DIVISION Chapter 24: Training  

E-Print Network [OSTI]

ENVIRONMENT, SAFETY & HEALTH DIVISION Chapter 24: Training Quick Start Summary Product ID: 520-group.slac.stanford.edu/esh/eshmanual/references/trainingQuickstart.pdf 1 Who needs to know about these requirements The requirements of Training apply to all persons on-site, employees and non-employees, their SLAC

Wechsler, Risa H.

247

Division of Human Resources University Grievance Procedures  

E-Print Network [OSTI]

Division of Human Resources University Grievance Procedures Employee Relations/ USF System Grievance Procedure Questions: (813) 974-2970 Rev. 12/2012 This procedure applies to Administration, Staff in this procedure are expressed in calendar days. If a deadline falls on a Saturday, Sunday or holiday, an action

Meyers, Steven D.

248

UNIVERSITY OF SASKATCHEWAN FACILITIES MANAGEMENT DIVISION  

E-Print Network [OSTI]

UNIVERSITY OF SASKATCHEWAN FACILITIES MANAGEMENT DIVISION POLICY Policy Number: 310.1 Approvals at the University of Saskatchewan. In addition, it will provide other administrative and academic units at the University of Saskatchewan with a model for sustainability in their respective workplaces. Policy Statement

Peak, Derek

249

Materials Sciences Division 1990 annual report  

SciTech Connect (OSTI)

This report is the Materials Sciences Division's annual report. It contains abstracts describing materials research at the National Center for Electron Microscopy, and for research groups in metallurgy, solid-state physics, materials chemistry, electrochemical energy storage, electronic materials, surface science and catalysis, ceramic science, high tc superconductivity, polymers, composites, and high performance metals.

Not Available

1990-01-01T23:59:59.000Z

250

West Virginia University Division of Human Resources  

E-Print Network [OSTI]

Resources Web page hr.wvu.edu. In the event of a conflict between the current posted version and this printed copy, the posted version on the Web page is controlling. Page 1 of 9 Family Medical Leave Act Division of Human Resources Web page hr.wvu.edu. In the event of a conflict between the current posted

Mohaghegh, Shahab

251

Earth Science Division Overview Unidata Policy Committee  

E-Print Network [OSTI]

Science Division Focus Areas Shanghai Beijing #12;USGCRP NACP: North American Carbon Program http on Earth's climate, the ozone layer and how much solar energy the Earth retains. To improve our and Ecosystems Climate Variability and Change Weather Water and Energy Cycle Earth Surface and Interior Earth

252

Building an R package Division of Biostatistics  

E-Print Network [OSTI]

Building an R package Yen-Yi Ho Division of Biostatistics School of Public Health, University of Minnesota Yen-Yi Ho Building an R package #12;Steps Prepare your functions, example data sets Build package in man subdirectory) Write a package vignette Build and install the R package (R CMD build) Check the R

Carlin, Bradley P.

253

SHORT-TUBE SUBCRITICAL FLOW Enerag Division  

E-Print Network [OSTI]

#12;SHORT-TUBE SUBCRITICAL FLOW Y. C. Mei Enerag Division Oak Ridge National Laboratory Oak Ridge-tube subcritical flow. For short tubes used as refrigerant expansion devices, the orifice model is found inadequate-TUBE SUBCRITICAL FLOW INTRODUCTION Much theoretical and experimental work regarding short tube fluid flow has

Oak Ridge National Laboratory

254

Division of Human Resources Payroll Certification Process  

E-Print Network [OSTI]

Division of Human Resources Payroll Certification Process Questions (813) 974-7955 Payroll/Payroll Processing Rev. 04/2010 Payroll Certification is the process by which departments submit to Payroll the hours to be paid for each employee within each department. This process utilizes the online Certification System

Meyers, Steven D.

255

MEDIUM POWER 352 MHZ SOLID STATE PULSED RF AMPLIFIERS FOR THE CERN LINAC4 PROJECT  

E-Print Network [OSTI]

MEDIUM POWER 352 MHZ SOLID STATE PULSED RF AMPLIFIERS FOR THE CERN LINAC4 PROJECT J. Broere, J in the CERN Linac4. The amplifiers are water-cooled and can provide up to 33 kW pulsed RF Power, 1.5 ms pulse RF Power for the debuncher cavity. The concept is based on 1.2 kW RF power modules using the latest 6

Paris-Sud XI, Université de

256

Energy Technology Division research summary 1997.  

SciTech Connect (OSTI)

The Energy Technology Division provides materials and engineering technology support to a wide range of programs important to the US Department of Energy. As shown on the preceding page, the Division is organized into ten sections, five with concentrations in the materials area and five in engineering technology. Materials expertise includes fabrication, mechanical properties, corrosion, friction and lubrication, and irradiation effects. Our major engineering strengths are in heat and mass flow, sensors and instrumentation, nondestructive testing, transportation, and electromechanics and superconductivity applications. The Division Safety Coordinator, Environmental Compliance Officers, Quality Assurance Representative, Financial Administrator, and Communication Coordinator report directly to the Division Director. The Division Director is personally responsible for cultural diversity and is a member of the Laboratory-wide Cultural Diversity Advisory Committee. The Division's capabilities are generally applied to issues associated with energy production, transportation, utilization or conservation, or with environmental issues linked to energy. As shown in the organization chart on the next page, the Division reports administratively to the Associate Laboratory Director (ALD) for Energy and Environmental Science and Technology (EEST) through the General Manager for Environmental and Industrial Technologies. While most of our programs are under the purview of the EEST ALD, we also have had programs funded under every one of the ALDs. Some of our research in superconductivity is funded through the Physical Research Program ALD. We also continue to work on a number of nuclear-energy-related programs under the ALD for Engineering Research. Detailed descriptions of our programs on a section-by-section basis are provided in the remainder of this book. This Overview highlights some major trends. Research related to the operational safety of commercial light water nuclear reactors (LWRS) is funded by the US Nuclear Regulatory Commission (NRC). In addition to our ongoing work on environmentally assisted cracking and steam generator integrity, a major new multiyear program has been initiated to assess the performance of high-burnup fuel during loss-of-coolant accidents. The bulk of the NRC research work is carried out in four ET sections: Corrosion: Mechanics of Materials; Irradiation Performance: and Sensors, Instrumentation, and Nondestructive Evaluation. The Transportation of Hazardous Materials Section is the other main contributor; staff from that Section have worked closely with NRC staff to draft a new version of the NRC Standard Review Plan that will be used to provide guidance to NRC reviewers of applications for the renewal of nuclear plant licenses.

NONE

1997-10-21T23:59:59.000Z

257

ACCELERATOR DIVISION ANNUAL REPORT, JAN-DEC. 1975  

E-Print Network [OSTI]

F. Voelker H. W. Vogel ACCELERATOR THEORY A. A. Garren L. J.marked a turning point for the Accelerator Division. A majorbright indeed. VII ACCELERATOR DIVISION Contents ACCELERATOR

Lofgren, E.J.

2008-01-01T23:59:59.000Z

258

Department of Natural Resources and Water Divisions (Nebraska)  

Broader source: Energy.gov [DOE]

This chapter describes the duties of the Department of Natural Resources and divides the state into two water divisions for administrative purposes. Water Division 1 consists of all the lands of...

259

Nuclear Science Division Annual Report 1995-1996  

E-Print Network [OSTI]

Saladin5, and C.H. Yu6 Nuclear Science Division, LawrenceMoretto, G.J. Wozniak, Nuclear Science Division, LawrenceComment on Probing the Nuclear Liquid-Gas Phase Transition

Authors, Various

2010-01-01T23:59:59.000Z

260

Linking Sulfur Metabolism to the Cell Division Machinery in Yeast  

E-Print Network [OSTI]

The longstanding view has been that metabolism allows for cell division to take place, but that metabolic processes do not actively promote cell division. I have recently challenged this notion by identifying a unique gain-of-function metabolic...

Blank, Heidi M.

2010-07-14T23:59:59.000Z

Note: This page contains sample records for the topic "division head rf" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

The mechanism of chloroplast division in higher plants  

E-Print Network [OSTI]

of chloroplasts found in a normal mesophyll cell. The process of chloroplast biogenesis has been well characterized at the cellular level, but the molecular basis of chloroplast division and the role of nuclear genes in the control of plastid division...

Proctor, John Michael

2013-02-22T23:59:59.000Z

262

Development of RF CMOS receiver front-ends for ultrawideband  

E-Print Network [OSTI]

demonstrates two different solutions for the RF front-end designs in the UWB receivers, one is distributed topology, and the other is based on traditional lumped element topology. The distributed amplifier is one of the attractive candidates for UWB Low Noise...

Guan, Xin

2009-05-15T23:59:59.000Z

263

Superfluid helium cryogenic systems for superconducting RF cavities at KEK  

SciTech Connect (OSTI)

Recent accelerator projects at KEK, such as the Superconducting RF Test Facility (STF) for R and D of the International Linear Collider (ILC) project and the compact Energy Recovery Linac (cERL), employ superconducting RF cavities made of pure niobium, which can generate high gradient acceleration field. Since the operation temperature of these cavities is selected to be 2 K, we have developed two 2 K superfluid helium cryogenic systems for stable operation of superconducting RF cavities for each of STF and cERL. These two 2 K superfluid helium cryogenic systems are identical in principle. Since the operation mode of the cavities is different for STF and cERL, i.e. the pulse mode for STF and the continuous wave mode for cERL, the heat loads from the cavities are quite different. The 2 K superfluid helium cryogenic systems mainly consists of ordinary helium liquefiers/refrigerators, 2 K refrigerator cold boxes, helium gas pumping systems and high-performance transfer lines. The 2 K refrigerators and the high-performance transfer lines are designed by KEK. Some superconducting RF cavity cryomodules have been already connected to the 2 K superfluid helium cryogenic systems for STF and cERL respectively, and cooled down to 2 K successfully.

Nakai, H.; Hara, K.; Honma, T.; Hosoyama, K.; Kojima, Y.; Nakanishi, K. [High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0033 (Japan); Kanekiyo, T. [Hitachi Plant Technologies, Ltd., Toshima-ku, Tokyo 170-8466 (Japan); Morita, S. [Hitachi Plant Mechanics Co., Ltd., Kudamatsu, Yamaguchi 744-0061 (Japan)

2014-01-29T23:59:59.000Z

264

COLLISIONLESS ELECTRON HEATING IN RF GAS DISCHARGES: I. QUASILINEAR THEORY  

E-Print Network [OSTI]

COLLISIONLESS ELECTRON HEATING IN RF GAS DISCHARGES: I. QUASILINEAR THEORY Yu.M. Aliev1 , I an interest in mechanisms of electron heating and power deposition in the plasma main- tained by radio parameters. Due to the large value of the mean free path (MFP) the main mechanism of electron heating turns

Kaganovich, Igor

265

Feedback Configuration Tools for LHC Low Level RF  

SciTech Connect (OSTI)

The LHC Low Level RF System (LLRF) is a complex multi-VME crate system which is used to regulate the superconductive cavity gap voltage as well as to lower the impedance as seen by the beam through low latency feedback. This system contains multiple loops with several parameters to be set before the loops can be closed. In this paper, we present a suite of MATLAB based tools developed to perform the preliminary alignment of the RF stations and the beginnings of a closed loop model based alignment routine. We briefly introduce the RF system and in particular the base band (time domain noise based) network analyzer system built into the LHC LLRF. The main focus of this paper is the methodology of the algorithms used by the routines within the context of the overall system. Measured results are presented that validate the technique. Because the RF systems are located in a cavern 120 m underground in a location which is relatively un-accessible without beam and completely un-accessible with beam present or magnets are energized, these remotely operated tools are a necessity for the CERN LLRF team to maintain and tune their LLRF systems in a similar fashion as to what was done very successfully in PEP-II at SLAC.

Van Winkle, D.; Fox, J.; Mastorides, T.; Rivetta, C.; /SLAC; Baudrenghien, P.; Butterworth, A.; Molendijk, J.; /CERN

2009-12-16T23:59:59.000Z

266

RF power potential of 45 nm CMOS technology  

E-Print Network [OSTI]

This paper presents the first measurements of the RF power performance of 45 nm CMOS devices with varying device widths and layouts. We find that 45 nm CMOS can deliver a peak output power density of around 140 mW/mm with ...

Putnam, Christopher

267

Novel Reactor Relevant RF Actuator Schemes for the Lower  

E-Print Network [OSTI]

location for RF launchers Transport in tokamak sends heat and particles to low field side SOL: Forces reactor is challenging: Survivability is a major issue because of the harsh environment high heat solution that both mitigates PMI / coupling problems and improves core wave physics issues. #12;Reactor

268

Beyond ITER: RF Heating and Current Drive Issues for DEMO  

E-Print Network [OSTI]

control Need to operate reliably in a high power flux, high radiation, and "steady state" nuclear lose 10% or more power to edge / vessel ­ Minimal diagnostic support for RF edge interactions systems do not yet run for extended time periods #12;Facilities that provide a DEMO-relevant testing

Princeton Plasma Physics Laboratory

269

ANL Physics DivisionANL Physics Division ELECTRICAL SAFETY POLICY AND MANUAL  

E-Print Network [OSTI]

ON ENERGIZED CIRCUITS XV. LOCKOUT/TAGOUT XVI. TABLES The official version of this Physics Division manual annually. Ensures or oversees completion of the annual review of Lockout/Tagout procedures and authorized

Kemner, Ken

270

Multiband Antenna-Receiver Integration using an RF Multiplexer with Sensitivity-Constrained Design  

E-Print Network [OSTI]

S.M. Shajedul Hasan (hasan@vt.edu) Steven Ellingson (ellingson@vt.edu) RF Multiplexer Hasan be largely mitigated by: · Implementing design to be robust to variations RF Multiplexer Hasan / Ellingson #12;Motivation (2/2) Focus of this paper System Diagram of the prototype MMR RF Multiplexer Hasan

Ellingson, Steven W.

271

Multiband Antenna-Receiver Integration using an RF Multiplexer with Sensitivity-Constrained Design  

E-Print Network [OSTI]

S.M. Hasan and S. W. Ellingson Wireless at Virginia Tech RF Multiplexer Hasan / Ellingson ­ July 10 be largely mitigated by: 2/14 RF Multiplexer Hasan / Ellingson ­ July 10, 2008 RFIC from Motorola Research (2/2) Focus of this paper System Diagram of the prototype MMR 3/14 RF Multiplexer Hasan / Ellingson

Ellingson, Steven W.

272

Identification of Residual Stress State in an RF-MEMS Device  

E-Print Network [OSTI]

of wafer level tests. The membrane is part of an RF MEMS Switch man- ufactured by Raytheon Systems Co) and 3D numerical simulations. THE RAYTHEON'S RF MEMS SWITCH The RF MEMS switch technology developed by Raytheon Systems Co. provides advantageous characteristics for communication circuits by virtue of its

Espinosa, Horacio D.

273

INTRAMURAL GOLF TOURAMENT ALL DIVISIONS Fall 2011 Division Sunday Sept. 18  

E-Print Network [OSTI]

INTRAMURAL GOLF TOURAMENT ALL DIVISIONS Fall 2011 Division Sunday Sept. 18 GOLF M W Team Member ?? EMAIL Tee-Time FIRST NAME LAST NAME or F TEAM NAME @psu.edu 9:00 AM Matt McTague M last round mim5187 Frankie Kehs M last round fjk5012 Chase Roman M Tiger Wood cer197 Dustin Hartzel M Tiger Wood dnh124 9

Omiecinski, Curtis

274

PPA Department Heads Mtng March 6, 2008  

E-Print Network [OSTI]

&D and Physics Planning: Assumed to hold flat for next few years. * Proton Accelerator-Based Physics ­ ATLAS: Planning for ramp up of activity beginning in FY09. Includes Tier 2 Center. ­ ATLAS Upgrade: Early R on rf sources, electron source, and beam delivery system. ­ Facility Operations: NLCTA, End Station B

Wechsler, Risa H.

275

Comparative Analysis of Carbon Plasma in Arc and RF Reactors  

SciTech Connect (OSTI)

Results on studies of molecular spectra emitted in the initial stages of fullerene formation during the processing of graphite powder in induction RF reactor and evaporation of graphite electrodes in arc reactor are presented in this paper. It was found that C2 radicals were dominant molecular species in both plasmas. C2 radicals have an important role in the process of fullerene synthesis. The rotational-vibrational temperatures of C2 and CN species were calculated by fitting the experimental spectra to the simulated ones. The results of optical emission study of C2 radicals generated in carbon arc plasma have shown that rotational temperature of C2 species depends on carbon concentration and current intensity significantly. The optical emission study of induction RF plasma and SEM analysis of graphite powder before and after plasma treatment have shown that evaporation of the processed graphite powder depends on feed rate and composition of gas phase significantly. Based on the obtained results, it was concluded that in the plasma region CN radicals could be formed by the reaction of C2 species with atomic nitrogen at smaller loads. At larger feed rate of graphite powder, CN species were produced by surface reaction of the hot carbon particles with nitrogen atoms. The presence of nitrogen in induction RF plasma reduces the fullerene yield significantly. The fullerene yield obtained in two different reactors was: 13% in arc reactor and 4.1% in induction RF reactor. However, the fullerene production rate was higher in induction RF reactor-6.4 g/h versus 1.7 g/h in arc reactor.

Todorovic-Markovic, B.; Markovic, Z. ['Vinca' Institute of Nuclear Sciences, P.O.B. 522, 11001 Belgrade (Serbia and Montenegro); Mohai, I.; Szepvolgyi, J. [Research Laboratory of Materials and Environmental Chemistry, Chemical Research Center, Hungarian Academy of Sciences H-1525 Budapest, POB 17 (Hungary)

2004-12-01T23:59:59.000Z

276

NUCLEAR SCIENCE AND TECHNOLOGY DIVISION OAK RIDGE NATIONAL LABORATORY  

E-Print Network [OSTI]

NUCLEAR SCIENCE AND TECHNOLOGY DIVISION OAK RIDGE NATIONAL LABORATORY U.S. DEPARTMENT OF ENERGY-27, 2004 CERN Geneva, Switzerland #12;NUCLEAR SCIENCE AND TECHNOLOGY DIVISION OAK RIDGE NATIONAL LABORATORY Experience Installing New Equipment · Conclusions #12;NUCLEAR SCIENCE AND TECHNOLOGY DIVISION OAK RIDGE

McDonald, Kirk

277

NUCLEAR SCIENCE AND TECHNOLOGY DIVISION OAK RIDGE NATIONAL LABORATORY  

E-Print Network [OSTI]

NUCLEAR SCIENCE AND TECHNOLOGY DIVISION OAK RIDGE NATIONAL LABORATORY U.S. DEPARTMENT OF ENERGY Upton, NY #12;2 NUCLEAR SCIENCE AND TECHNOLOGY DIVISION OAK RIDGE NATIONAL LABORATORY U.S. DEPARTMENT;3 NUCLEAR SCIENCE AND TECHNOLOGY DIVISION OAK RIDGE NATIONAL LABORATORY U.S. DEPARTMENT OF ENERGY Properties

McDonald, Kirk

278

Experimental Facilities Division Oak Ridge Nov. 13-15, 2002  

E-Print Network [OSTI]

Experimental Facilities Division Oak Ridge Nov. 13-15, 2002 PITTING ISSUE/TARGET DECISION John;Experimental Facilities Division Oak Ridge2 Nov. 13-15, 2002 SNS-XFD Doug Abernathy Michael Agamalian Ian The Pit Crew #12;Experimental Facilities Division Oak Ridge3 Nov. 13-15, 2002 Criteria and Deadlines

McDonald, Kirk

279

TO: HR and Business Contacts FROM: Division of Human Resources  

E-Print Network [OSTI]

MEMORANDUM TO: HR and Business Contacts FROM: Division of Human Resources DATE: October 25, 2013 RE: Human Resources Fall 2013 Forum The Division of Human Resources will sponsor an HR Forum from 1 to the Division of Human Resources' Organizational and Professional Development Office at hrtrain

Almor, Amit

280

TO: HR and Business Contacts FROM: Division of Human Resources  

E-Print Network [OSTI]

TO: HR and Business Contacts FROM: Division of Human Resources DATE: September 6, 2012 RE: Human Resources Fall 2012 Forum The Division of Human Resources will sponsor an HR Forum from 1-4 p in person or by webinar. Any questions about the forum may be e-mailed to the Division of Human Resources

Almor, Amit

Note: This page contains sample records for the topic "division head rf" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Bear Head LNG Corporation and Bear Head LNG (USA), LLC- FE Dkt No. 15-14-NG  

Broader source: Energy.gov [DOE]

On January 23, 2015, Bear Head LNG Corporation and Bear Head LNG (USA), LLC (together, Bear Head LNG), filed an application for long-term, multi-contract authorization to engage in imports from,...

282

Bear Head LNG Corporation and Bear Head LNG (USA), LLC FE Docket No. 15-14-NG  

Broader source: Energy.gov [DOE]

On January 23, 2015, Bear Head LNG Corporation and Bear Head LNG (USA), LLC (together, Bear Head LNG), filed an application for long-term, multi-contract authorization to engage in imports from,...

283

DOE Head Contracting Authority (HCA) and Procurement Director...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

DOE Head Contracting Authority (HCA) and Procurement Director (PD) Directory DOE Head Contracting Authority (HCA) and Procurement Director (PD) Directory HCA and PD List Sept 23...

284

INTERNAL POSTING - Head of Technology Transfer, Patents & Publications...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

INTERNAL POSTING - Head of Technology Transfer, Patents & Publications Department: Best Practices Supervisor(s): John Delooper Staff: AM 7 Requisition Number: 1400936 The Head of...

285

Laboratory Demonstration of a New American Low-Head Hydropower...  

Broader source: Energy.gov (indexed) [DOE]

Laboratory Demonstration of a New American Low-Head Hydropower Turbine Laboratory Demonstration of a New American Low-Head Hydropower Turbine Laboratory Demonstration of a New...

286

UNIVERSITY OF HOUSTON Division of Research  

E-Print Network [OSTI]

.037CFDA: 00730 / 5013 / H0053 / C0001 / G104101 / 49813 U.S. Small Business Administration CB Designation: Duration: CFDA: 00730 / 5021 / H0063 / C0001 / G104675 / 50199 Atlanta Independent School System CB Dr. $30,000.00 Cost Center: Agency: Pass_Thru Agency: Agency Type: Duration: Head Start93.600CFDA

Azevedo, Ricardo

287

Biology Division progress report, October 1, 1993--September 30, 1995  

SciTech Connect (OSTI)

This Progress Report summarizes the research endeavors of the Biology Division of the Oak Ridge National Laboratory during the period October 1, 1993, through September 30, 1995. The report is structured to provide descriptions of current activities and accomplishments in each of the Division`s major organizational units. Lists of information to convey the entire scope of the Division`s activities are compiled at the end of the report. Attention is focused on the following research activities: molecular, cellular, and cancer biology; mammalian genetics and development; genome mapping program; and educational activities.

NONE

1995-10-01T23:59:59.000Z

288

Chemical Technology Division. Annual technical report, 1995  

SciTech Connect (OSTI)

Highlights of the Chemical Technology (CMT) Division`s activities during 1995 are presented. In this period, CMT conducted research and development in the following areas: (1) electrochemical technology, including advanced batteries and fuel cells; (2) methods for treatment of hazardous waste and mixed hazardous/radioactive waste; (3) the reaction of nuclear waste glass and spent fuel under conditions expected for an unsaturated repository; (4) processes for separating and recovering selected elements from waste streams, concentrating low-level radioactive waste streams with advanced evaporator technology, and producing {sup 99}Mo from low-enriched uranium; (5) electrometallurgical treatment of different types of spent nuclear fuel in storage at Department of Energy sites; and (6) physical chemistry of selected materials in environments simulating those of fission and fusion energy systems.

Laidler, J.J.; Myles, K.M.; Green, D.W.; McPheeters, C.C.

1996-06-01T23:59:59.000Z

289

Epistemological resources 1 Running Head: EPISTEMOLOGICAL RESOURCES  

E-Print Network [OSTI]

Epistemological resources 1 Running Head: EPISTEMOLOGICAL RESOURCES Epistemological resources University Maryland, College Park Trisha Kagey Montgomery County Public Schools #12;Epistemological resources are better understood as made up of finer-grained cognitive resources whose activation depends sensitively

Elby, Andy

290

TMI-2 reactor vessel head removal  

SciTech Connect (OSTI)

This report describes the safe removal and storage of the Three Mile Island Unit 2 reactor vessel head. The head was removed in July 1984 to permit the removal of the plenum and the reactor core, which were damaged during the 1979 accident. From July 1982, plans and preparations were made using a standard head removal procedure modified by the necessary precautions and changes to account for conditions caused by the accident. After data acquisition, equipment and structure modifications, and training the head was safely removed and stored and the internals indexing fixture and a work platform were installed on top of the vessel. Dose rates during and after the operation were lower than expected; lessons were learned from the operation which will be applied to the continuing fuel removal operations activities.

Bengel, P.R.; Smith, M.D.; Estabrook, G.A.

1984-12-01T23:59:59.000Z

291

TMI-2 reactor vessel head removal  

SciTech Connect (OSTI)

This report describes the safe removal and storage of the Three Mile Island Unit 2 (TMI-2) reactor vessel head. The head was removed in July 1984 to permit the removal of the plenum and the reactor core, which were damaged during the 1979 accident. From July 1982, plans and preparations were made using a standard head removal procedure modified by the necessary precautions and changes to account for conditions caused by the accident. After data acquisition, equipment and structure modifications, and training, the head was safely removed and stored; and the internals indexing fixture and a work platform were installed on top of the vessel. Dose rates during and after the operation were lower than expected; lessons were learned from the operation which will be applied to the continuing fuel removal operations activities.

Bengel, P.R.; Smith, M.D.; Estabrook, G.A.

1985-09-01T23:59:59.000Z

292

SPATIAL TRANSFORMATIONS 1 Running head: Spatial transformations  

E-Print Network [OSTI]

SPATIAL TRANSFORMATIONS 1 Running head: Spatial transformations Multiple Systems for Spatial Imagery: Transformations of Objects and Bodies Jeffrey M. Zacks* and Barbara Tversky * Washington COGNITION & COMPUTATION #12;SPATIAL TRANSFORMATIONS 2 Abstract Problem-solving often requires imagining

Zacks, Jeffrey M.

293

Colorado Division of Wildlife | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectricEnergyCTBarreisVolcanicPowerRaft River 5 MWCommission| OpenDivision of

294

Physics division. Progress report, January 1, 1995--December 31, 1996  

SciTech Connect (OSTI)

This issue of the Physics Division Progress Report describes progress and achievements in Physics Division research during the period January 1, 1995-December 31, 1996. The report covers the five main areas of experimental research and development in which Physics Division serves the needs of Los Alamos National Laboratory and the nation in applied and basic sciences: (1) biophysics, (2) hydrodynamic physics, (3) neutron science and technology, (4) plasma physics, and (5) subatomic physics. Included in this report are a message from the Division Director, the Physics Division mission statement, an organizational chart, descriptions of the research areas of the five groups in the Division, selected research highlights, project descriptions, the Division staffing and funding levels for FY95-FY97, and a list of publications and presentations.

Stewart, M.; Bacon, D.S.; Aine, C.J.; Bartsch, R.R. [eds.] [comps.] [and others

1997-10-01T23:59:59.000Z

295

Section III, Division 5 - Development and Future Directions  

SciTech Connect (OSTI)

This paper provides commentary on a new division under Section III of the ASME Boiler and Pressure Vessel (BPV) Code. This new Division 5 has an issuance date of November 1, 2011 and is part of the 2011 Addenda to the 2010 Edition of the BPV Code. The new Division covers the rules for the design, fabrication, inspection and testing of components for high temperature nuclear reactors. Information is provided on the scope and need for Division 5, the structure of Division 5, where the rules originated, the various changes made in finalizing Division 5, and the future near-term and long-term expectations for Division 5 development. Portions of this paper were based on Chapter 17 of the Companion Guide to the ASME Boiler & Pressure Vessel Code, Fourth Edition, ASME, 2012, Reference.

D. K. Morton; R I Jetter; James E Nestell; T. D. Burchell; T L (Sam) Sham

2012-07-01T23:59:59.000Z

296

Chemical Technology Division annual technical report, 1994  

SciTech Connect (OSTI)

Highlights of the Chemical Technology (CMT) Division`s activities during 1994 are presented. In this period, CMT conducted research and development in the following areas: (1) electrochemical technology, including advanced batteries and fuel cells; (2) technology for fluidized-bed combustion; (3) methods for treatment of hazardous waste and mixed hazardous/radioactive waste; (4) the reaction of nuclear waste glass and spent fuel under conditions expected for an unsaturated repository; (5) processes for separating and recovering transuranic elements from waste streams, concentrating radioactive waste streams with advanced evaporator technology, and producing {sup 99}Mo from low-enriched uranium for medical applications; (6) electrometallurgical treatment of the many different types of spent nuclear fuel in storage at Department of Energy sites; and (8) physical chemistry of selected materials in environments simulating those of fission and fusion energy systems. The Division also conducts basic research in catalytic chemistry associated with molecular energy resources and novel ceramic precursors; materials chemistry of superconducting oxides, electrified metal/solution interfaces, molecular sieve structures, and impurities in scrap copper and steel; and the geochemical processes involved in mineral/fluid interfaces and water-rock interactions occurring in active hydrothermal systems. In addition, the Analytical Chemistry Laboratory in CMT provides a broad range of analytical chemistry support services to the technical programs at Argonne National Laboratory (ANL).

NONE

1995-06-01T23:59:59.000Z

297

Chemical Technology Division, Annual technical report, 1991  

SciTech Connect (OSTI)

Highlights of the Chemical Technology (CMT) Division`s activities during 1991 are presented. In this period, CMT conducted research and development in the following areas: (1) electrochemical technology, including advanced batteries and fuel cells; (2) technology for fluidized-bed combustion and coal-fired magnetohydrodynamics; (3) methods for treatment of hazardous and mixed hazardous/radioactive waste; (4) the reaction of nuclear waste glass and spent fuel under conditions expected for an unsaturated repository; (5) processes for separating and recovering transuranic elements from nuclear waste streams; (6) recovery processes for discharged fuel and the uranium blanket in the Integral Fast Reactor (IFR); (7) processes for removal of actinides in spent fuel from commercial water-cooled nuclear reactors and burnup in IFRs; and (8) physical chemistry of selected materials in environments simulating those of fission and fusion energy systems. The Division also conducts basic research in catalytic chemistry associated with molecular energy resources; chemistry of superconducting oxides and other materials of interest with technological application; interfacial processes of importance to corrosion science, catalysis, and high-temperature superconductivity; and the geochemical processes involved in water-rock interactions occurring in active hydrothermal systems. In addition, the Analytical Chemistry Laboratory in CMT provides a broad range of analytical chemistry support services to the technical programs at Argonne National Laboratory (ANL).

Not Available

1992-03-01T23:59:59.000Z

298

Electro-optic voltage sensor head  

DOE Patents [OSTI]

The invention is an electro-optic voltage sensor head designed for integration with existing types of high voltage transmission and distribution apparatus. The sensor head contains a transducer, which comprises a transducing material in which the Pockels electro-optic effect is observed. In the practice of the invention at least one beam of electromagnetic radiation is routed into the transducing material of the transducer in the sensor head. The beam undergoes an electro-optic effect in the sensor head when the transducing material is subjected to an E-field. The electro-optic effect is observed as a differential phase a shift, also called differential phase modulation, of the beam components in orthogonal planes of the electromagnetic radiation. In the preferred embodiment the beam is routed through the transducer along an initial axis and then reflected by a retro-reflector back substantially parallel to the initial axis, making a double pass through the transducer for increased measurement sensitivity. The preferred embodiment of the sensor head also includes a polarization state rotator and at least one beam splitter for orienting the beam along major and minor axes and for splitting the beam components into two signals which are independent converse amplitude-modulated signals carrying E-field magnitude and hence voltage information from the sensor head by way of optic fibers.

Crawford, Thomas M. (Idaho Falls, ID); Davidson, James R. (Idaho Falls, ID); Woods, Gregory K. (Cornelius, OR)

1999-01-01T23:59:59.000Z

299

Electro-optic voltage sensor head  

DOE Patents [OSTI]

The invention is an electro-optic voltage sensor head designed for integration with existing types of high voltage transmission and distribution apparatus. The sensor head contains a transducer, which comprises a transducing material in which the Pockels electro-optic effect is observed. In the practice of the invention at least one beam of electromagnetic radiation is routed into the transducing material of the transducer in the sensor head. The beam undergoes an electro-optic effect in the sensor head when the transducing material is subjected to an E-field. The electro-optic effect is observed as a differential phase a shift, also called differential phase modulation, of the beam components in orthogonal planes of the electromagnetic radiation. In the preferred embodiment the beam is routed through the transducer along an initial axis and then reflected by a retro-reflector back substantially parallel to the initial axis, making a double pass through the transducer for increased measurement sensitivity. The preferred embodiment of the sensor head also includes a polarization state rotator and at least one beam splitter for orienting the beam along major and minor axes and for splitting the beam components into two signals which are independent converse amplitude-modulated signals carrying E-field magnitude and hence voltage information from the sensor head by way of optic fibers. 6 figs.

Crawford, T.M.; Davidson, J.R.; Woods, G.K.

1999-08-17T23:59:59.000Z

300

Induction heating of FeCo nanoparticles for rapid rf curing of epoxy K. J. Miller,1,a  

E-Print Network [OSTI]

, and cracking of the polymer. An alternative curing process involves remote, noncontact rf heating of MNP loadedInduction heating of FeCo nanoparticles for rapid rf curing of epoxy composites K. J. Miller,1,a K epoxy composites through radio-frequency rf heating. The rf response of functionalized FeCo MNPs

McHenry, Michael E.

Note: This page contains sample records for the topic "division head rf" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Free electron laser using Rf coupled accelerating and decelerating structures  

DOE Patents [OSTI]

A free electron laser and free electron laser amplifier using beam transport devices for guiding an electron beam to a wiggler of a free electron laser and returning the electron beam to decelerating cavities disposed adjacent to the accelerating cavities of the free electron laser. Rf energy is generated from the energy depleted electron beam after it emerges from the wiggler by means of the decelerating cavities which are closely coupled to the accelerating cavities, or by means of a second bore within a single set of cavities. Rf energy generated from the decelerated electron beam is used to supplement energy provided by an external source, such as a klystron, to thereby enhance overall efficiency of the system.

Brau, Charles A. (Los Alamos, NM); Swenson, Donald A. (Los Alamos, NM); Boyd, Jr., Thomas J. (Los Alamos, NM)

1984-01-01T23:59:59.000Z

302

Performance of Magnesium Cathode in the S Band RF Gun  

SciTech Connect (OSTI)

In this paper, we present the preliminary results of the performance of magnesium cathode in a high frequency RF gun. The quantum efficiency of magnesium showed a dramatic improvement upon laser cleaning, increasing from 10{sup -5} to 4x10{sup -4} after two hours of cleaning. The spatial uniformity of emission also improved from a spot to spot variation of 10 to a variation of 2. Measurements with charges >1 nC indicate that the transient variation of the field due to the shielding effect of the electron in the vicinity of the cathode may play a critical role in the efficient extraction of electrons. Comprehensive theory that includes the electron emission in the presence of a time dependent Schottky effect and RF effects will be discussed.

Srinivasan-Rao, T.; /Brookhaven; Palmer, D.T.; /SLAC; Ben-Zvi, I.; /Brookhaven; Miller, R.H.; /SLAC; Wang, X.J.; Woodle, M.; /Brookhaven

2011-09-01T23:59:59.000Z

303

RF generation in the DARHT Axis-II beam dump  

SciTech Connect (OSTI)

We have occasionally observed radio-frequency (RF) electromagnetic signals in the downstream transport (DST) of the second axis linear induction accelerator (LIA) at the dual-axis radiographic hydrodynamic testing (DARHT) facility. We have identified and eliminated some of the sources by eliminating the offending cavities. However, we still observe strong RF in the range 1 GHz t0 2 GHz occurring late in the {approx}2-{micro}s pulse that can be excited or prevented by varying the downstream tune. The narrow frequency width (<0.5%) and near exponential growth at the dominant frequency is indicative of a beam-cavity interaction, and electro-magnetic simulations of cavity structure show a spectrum rich in resonances in the observed frequency range. However, the source of beam produced RF in the cavity resonance frequency range has not been identified, and it has been the subject of much speculation, ranging from beam-plasma or beam-ion instabilities to unstable cavity coupling.

Ekdahl, Carl A. Jr. [Los Alamos National Laboratory

2012-05-03T23:59:59.000Z

304

1 -SUBTIDAL 2 -INTERTIDAL RB ROCK UB UNCONSOLIDATED AB AQUATIC BED RF -REEF OW -OPEN WATER/ AB AQUATIC BED RF REEF RS ROCKY SHORE US -UNCONSOLIDATED  

E-Print Network [OSTI]

M - MARINE 1 - SUBTIDAL 2 - INTERTIDAL RB ­ ROCK UB ­ UNCONSOLIDATED AB ­ AQUATIC BED RF - REEF OW - OPEN WATER/ AB ­ AQUATIC BED RF­ REEF RS ­ ROCKY SHORE US - UNCONSOLIDATED BOTTOM BOTTOM Unknown Bottom ­ UNCONSOLIDATED AB ­ AQUATIC RF ­ REEF OW - OPEN WATER/ AB ­ AQUATIC RF­ REEF SB ­ STREAMBED RS - ROCKY US

Gray, Matthew

305

Most Workers Who Suffer Head Injuries- Were Not Wearing Head Protection  

Broader source: Energy.gov [DOE]

A survey by the U.S. Department of Labors Bureau of Labor Statistics (BLS) of accidents and injuries noted that most workers who suffered impact injuries to the head were not wearing head protection. In addition, the same survey showed that the majority of workers were injured while performing their normal jobs at their regular worksites.

306

Training and Certification of Lock Operators IMTS Heads-up Paper Heads-up Paper  

E-Print Network [OSTI]

Training and Certification of Lock Operators IMTS Heads-up Paper 1 Heads-up Paper Training called "Training and Certification of Lock and Dam Operators." Interested individuals can send ideas of the Training and Certification program. Examples of what will be in those draft documents are as follows

US Army Corps of Engineers

307

Dual, rotating stripper rubber drilling head  

SciTech Connect (OSTI)

In a drilling head for a well bore through which a tool string of varying outside diameter is run, the drilling head sealing against fluid flow past the tool string to divert such fluid through a side outlet port, said drilling head including a housing having an axial passageway through which the tool string is run and a bearing assembly to facilitate rotation of the tool string within the axial passageway, the improved drilling head comprising: first and second stripper rubbers rotatably mounted within the drilling head housing in seating contact with the tool string, said stripper rubbers having substantially identical inner diameters through which the tool string extends, said first stripper rubber formed of an abrasive resistant material to divert fluid flow from the axial passageway of the housing to the side outlet port and said second stripper rubber formed on a sealingly resilient material which maintains sealing contact with the tool string extending there through preventing fluid flow past said tool string; said first stripper rubber being corrected to clamping means associated with the bearing assembly through a first drive ring such that said first stripper rubber rotates with the tool string; and said second stripper rubber is rotatably connected to said clamping means associated with the bearing assembly through a second drive ring, said first and second drive rings coaxially mounted within the housing whereby said first stripper rubber is positioned axially below said second stripper rubber in sealing contact with the tool string.

Bailey, T.F.; Campbell, J.E.

1993-05-25T23:59:59.000Z

308

Rotating head for rotary drilling rigs  

SciTech Connect (OSTI)

A rotating head is claimed for a rotary drilling rig which is to be secured to the top of a well pipe having an inner rotating portion with an opening therethrough which permits passage of drill pipe, pipe joints, and Kelly tools; the rotating portion has an annular drive rubber formed integrally with the top portion thereof. A rotating head drive bushing having an opening with a cross-sectional shape generally conforming to the cross-section of the Kelly tool to permit only sliding motion therebetween is provided with helical external ridges which produce a disengagable gripping action with the opening in the drive rubber at the top of the rotating portion of the rotating head. The rotating portion has a conventional stripper rubber at the bottom thereof and is mounted with a double roller bearing to provide low friction motion with respect to the fixed portion of the head. The double roller bearing is lubricated with a viscous lubricating material and paddles are provided between the sets of rollers of the double roller bearing for distributing the viscous lubricating material and in particular propel it onto the upper set of bearings; the upper body portion of the rotating head is readily detachable from the lower sleeve portion which is normally welded to the well conductor pipe.

Adams, J.R.

1983-09-27T23:59:59.000Z

309

Nuclear Science Division 1994 annual report  

SciTech Connect (OSTI)

This report describes the activities of the Nuclear Science Division for the period of January 1, 1994, to December 31, 1994. This was a time of significant accomplishment for all of the programs in the Division. Assembly of the solar neutrino detector at the Sudbury Neutrino Observatory is well under way. All of the components fabricated by LBL were shipped to Sudbury early in the year and our efforts are now divided between assisting the assembly of the detector and preparing software for data analysis once the detector is operational in 1996. Much of the activity at the 88-Inch Cyclotron centered on Gammasphere. The {open_quotes}early implementation{close_quotes} phase of the detector ended in September. This phase was extremely successful, involving over 60 experiments with nearly 200 users from 37 institutions worldwide. The mechanical structure was installed and the final electronic system is expected to operate in March 1995. The Division concurrently hosted a conference on physics for large {gamma}-ray detector arrays at the Clark Kerr Campus at UC Berkeley in August. This was a very successful meeting, reflecting the enthusiasm for this field worldwide. Also at the Cyclotron, the progress toward weak interaction experiments using ultra-thin sources passed a major milestone with the trapping of radioactive {sup 21}Na atoms. We are now engaged in a major upgrade of the experimental area and the outlook is very promising for these novel experiments. Another highlight of research at the Cyclotron was the confirmation of element 106. This development allowed the original LLNL/LBL discovery team to move forward with their proposal to name this element seaborgium.

Myers, W.D. [ed.

1995-06-01T23:59:59.000Z

310

Chemical Technology Division annual technical report, 1986  

SciTech Connect (OSTI)

Highlights of the Chemical Technology (CMT) Division's activities during 1986 are presented. In this period, CMT conducted research and development in areas that include the following: (1) high-performance batteries - mainly lithium-alloy/metal sulfide and sodium/sulfur; (2) aqueous batteries (lead-acid, nickel/iron, etc.); (3) advanced fuel cells with molten carbonate or solid oxide electrolytes; (4) coal utilization, including the heat and seed recovery technology for coal-fired magnetohydrodynamics plants, the technology for fluidized-bed combustion, and a novel concept for CO/sub 2/ recovery from fossil fuel combustion; (5) methods for recovery of energy from municipal waste; (6) methods for the electromagnetic continuous casting of steel sheet; (7) techniques for treatment of hazardous waste such as reactive metals and trichloroethylenes; (8) nuclear technology related to waste management, a process for separating and recovering transuranic elements from nuclear waste, and the recovery processes for discharged fuel and the uranium blanket in a sodium-cooled fast reactor; and (9) physical chemistry of selected materials in environments simulating those of fission and fusion energy systems. The Division also has a program in basic chemistry research in the areas of catalytic hydrogenation and catalytic oxidation; materials chemistry for associated and ordered solutions at high temperatures; interfacial processes of importance to corrosion science, surface science, and catalysis; the thermochemistry of zeolites and related silicates; and the geochemical processes responsible for trace-element migration within the earth's crust. The Division continued to be the major user of the technical support provided by the Analytical Chemistry Laboratory at ANL. 127 refs., 71 figs., 8 tabs.

Not Available

1987-06-01T23:59:59.000Z

311

Chemical technology division: Annual technical report 1987  

SciTech Connect (OSTI)

Highlights of the Chemical Technology (CMT) Division's activities during 1987 are presented. In this period, CMT conducted research and development in the following areas: (1) high-performance batteries--mainly lithium-alloy/metal sulfide and sodium/sulfur; (2) aqueous batteries (lead-acid, nickel/iron, etc.); (3) advanced fuel cells with molten carbonate or solid oxide electrolytes; (4) coal utilization, including the heat and seed recovery technology for coal-fired magnetohydrodynamics plants and the technology for fluidized-bed combustion; (5) methods for the electromagnetic continuous casting of steel sheet and for the purification of ferrous scrap; (6) methods for recovery of energy from municipal waste and techniques for treatment of hazardous organic waste; (7) nuclear technology related to a process for separating and recovering transuranic elements from nuclear waste, the recovery processes for discharged fuel and the uranium blanket in a sodium-cooled fast reactor, and waste management; and (8) physical chemistry of selected materials in environments simulating those of fission and fusion energy systems. The Division also has a program in basic chemistry research in the areas of fluid catalysis for converting small molecules to desired products; materials chemistry for liquids and vapors at high temperatures; interfacial processes of importance to corrosion science, high-temperature superconductivity, and catalysis; the thermochemistry of various minerals; and the geochemical processes responsible for trace-element migration within the earth's crust. The Division continued to be the major user of the technical support provided by the Analytical Chemistry Laboratory at ANL. 54 figs., 9 tabs.

Not Available

1988-05-01T23:59:59.000Z

312

Chemical Technology Division annual technical report 1989  

SciTech Connect (OSTI)

Highlights of the Chemical Technology (CMT) Division's activities during 1989 are presented. In this period, CMT conducted research and development in the following areas: (1) electrochemical technology, including high-performance batteries (mainly lithium/iron sulfide and sodium/metal chloride), aqueous batteries (lead-acid and nickel/iron), and advanced fuel cells with molten carbonate and solid oxide electrolytes: (2) coal utilization, including the heat and seed recovery technology for coal-fired magnetohydrodynamics plants and the technology for fluidized-bed combustion; (3) methods for recovery of energy from municipal waste and techniques for treatment of hazardous organic waste; (4) nuclear technology related to a process for separating and recovering transuranic elements from nuclear waste and for producing {sup 99}Mo from low-enriched uranium targets, the recovery processes for discharged fuel and the uranium blanket in a sodium-cooled fast reactor (the Integral Fast Reactor), and waste management; and (5) physical chemistry of selected materials in environments simulating those of fission and fusion energy systems. The Division also has a program in basic chemistry research in the areas of fluid catalysis for converting small molecules to desired products; materials chemistry for superconducting oxides and associated and ordered solutions at high temperatures; interfacial processes of importance to corrosion science, high-temperature superconductivity, and catalysis; and the geochemical processes responsible for trace-element migration within the earth's crust. The Division continued to be administratively responsible for and the major user of the Analytical Chemistry Laboratory at Argonne National Laboratory (ANL).

Not Available

1990-03-01T23:59:59.000Z

313

Oregon Public Health Division | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth'sOklahoma/GeothermalOrange County is a county inPublic Health Division Jump to:

314

Development of an RF Conditioning System for Charged-Particle Accelerators  

SciTech Connect (OSTI)

Charged-particle accelerators use various vacuum windows on their accelerating radio-frequency (RF) cavities to throughput very high RF power. Before being placed on the cavities, the windows should be cleaned, baked, and fully RF conditioned to prevent a poor vacuum from outgassing, as well as other forms of contamination. An example is the coaxial fundamental power coupler (FPC) with an annular alumina ceramic window for each of the 81 superconducting RF cavities in the Spallation Neutron Source (SNS) linear accelerator. The FPCs needed to be tested up to 650-kW peak in a traveling wave and 2.6 MW with standing wave peaks in 1.3 and 60 pulses/s at 805 MHz. In this paper, an Experimental-Physics-and-Industrial-Control-System-based RF conditioning system for the SNS RF test facility is presented. This paper summarizes the hardware and software design strategies, provides the results obtained, and describes the future research scope.

Kang, Yoon W [ORNL; Howlader, Mostofa [ORNL; Shajedul Hasan, Dr. S. M. [Virginia Polytechnic Institute and State University (Virginia Tech)

2008-01-01T23:59:59.000Z

315

Physics Division ESH Bulletin 02-7 New Physics Division Procedure  

E-Print Network [OSTI]

at the work site while the interlock is disabled. When the interlock disablement is terminated, the Safety Division safety-related interlocks, exclusive of the HRIBF and ORELA facilities. Disablement of HRIBF and ORELA safety-related interlocks is regulated by facility-specific procedures. Safety-related interlocks

316

MATERIALS AND MOLECULAR RESEARCH DIVISION. ANNUAL REPORT 1980  

E-Print Network [OSTI]

Staff Seminars in Metallurgy and Materials Science,University, Department of Metallurgy, Cleveland, OH, JuneMaterials Research," Metallurgy Division, Department of

Searcy, Alan W.

2010-01-01T23:59:59.000Z

317

California Department of Conservation, Division of Oil, Gas,...  

Open Energy Info (EERE)

Jump to: navigation, search Name: California Department of Conservation, Division of Oil, Gas, and Geothermal Resources Place: Sacramento, California Coordinates: 38.5815719,...

318

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

supplies, dry cooling systi Energy Research and Development Division FINAL PROJECT REPORT INLET AIR SPRAY COOLINGUse Energy Efficiency Renewable Energy Technologies Transportation Inlet Air Spray Cooling

319

Division of Human Resources Human Resources / Attendance and Leave Philosophy  

E-Print Network [OSTI]

Division of Human Resources PHILOSOPHY Human Resources / Attendance and Leave Philosophy Form Leave Act (FMLA). USF augments these provisions with local processes and philosophies and, in some cases

Meyers, Steven D.

320

Chapter 50 Division for Air Quality: General Administrative Procedures (Kentucky)  

Broader source: Energy.gov [DOE]

Chapter 50 of the Division of Air Quality section within Energy and Environment Cabinet Department For Environmental Protection outlines the general administrative procedures for maintaining air...

Note: This page contains sample records for the topic "division head rf" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

64 _____________________________________Math & Computational Sciences Division High Performance Computing and Visualization  

E-Print Network [OSTI]

64 _____________________________________Math & Computational Sciences Division High Performance Computing and Visualization Research and Development in Visual Analysis Judith Devaney Terrence Griffin John

Perkins, Richard A.

322

LUCERNE FOODS LTD. (A Division of Canada Safeway Limited)  

E-Print Network [OSTI]

LUCERNE FOODS LTD. (A Division of Canada Safeway Limited) Processing Plant: 31122 South Fraser Way and Vegetable Processing Plant Location: Abbotsford, BC Job Description: Lucerne Foods, Clearbrook processing

Farrell, Anthony P.

323

UC ACADEMIC SENATE SANTA CRUZ DIVISION Committee on Educational Policy  

E-Print Network [OSTI]

UC ACADEMIC SENATE SANTA CRUZ DIVISION Committee on Educational Policy Policy on the Appointment. However, CEP believes that good educational policy requires that Senate faculty regularly teach

California at Santa Cruz, University of

324

Utah Division of Environmental Response and Remediation Underground...  

Open Energy Info (EERE)

Division of Environmental Response and Remediation Underground Storage Tank Branch Webpage Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Utah...

325

Hawaii Department of Land and Natural Resources Division of Forestry...  

Open Energy Info (EERE)

Name: Hawaii Department of Land and Natural Resources Division of Forestry and Wildlife Address: Kalanimoku Building 1151 Punchbowl St., Room 325 Place: Honolulu, Hawaii Zip:...

326

applied science division: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Remediation & Water Resources Kenneth Hurst Williams 6 PAUL O. WENNBERG Division of Engineering and Applied Science Geosciences Websites Summary: Fellowship. LARGE PROJECTS:...

327

Production and decay properties of the 1.9-s isomeric state in {sup 261}Rf  

SciTech Connect (OSTI)

The 1.9-s isomeric state ({sup 261}Rf{sup b}) in {sup 261}Rf was directly populated in the {sup 248}Cm({sup 18}O,5n){sup 261}Rf{sup b} reaction. Alpha and spontaneous fission (SF) decays of {sup 261}Rf{sup b}, as well as the 68-s state {sup 261}Rf{sup a}, was investigated with a rotating wheel apparatus under low background conditions attained by a gas-jet transport system coupled to the RIKEN gas-filled recoil ion separator. An identification of {sup 261}Rf{sup b} was based on {alpha}-{alpha} correlations linking {alpha} decays of {sup 261}Rf{sup b} and its daughter {sup 257}No. The {alpha}-particle energy of {sup 261}Rf{sup b} was measured to be 8.52 {+-} 0.05 MeV. The half-life was determined to be 1.9 {+-} 0.4 s based on both 8.52-MeV {alpha} and SF decays. The {alpha} and SF branches are 0.27 {+-} 0.06 and 0.73 {+-} 0.06, respectively. The cross section for the {sup 248}Cm({sup 18}O,5n){sup 261}Rf{sup b} reaction is {sigma}({sup 261}Rf{sup b}) = 11 {+-} 2 nb at 95.1 MeV, which gives a cross-section ratio of {sigma}({sup 261}Rf{sup a})/{sigma}({sup 261}Rf{sup b}) = 1.1 {+-} 0.2.

Haba, H.; Kaji, D.; Kikunaga, H.; Kudou, Y.; Morimoto, K.; Morita, K.; Ozeki, K.; Sumita, T.; Yoneda, A.; Kasamatsu, Y.; Komori, Y.; Ooe, K.; Shinohara, A. [Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama 351-0198 (Japan); Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043 (Japan)

2011-03-15T23:59:59.000Z

328

New SLED 3 system for Multi-mega Watt RF compressor  

E-Print Network [OSTI]

A compact X band SLED is introduced for X band RF compressing application. This SLED compressor consists two major parts: a rectangular to circular waveguide converter and an overmoded spherical cavity. The RF compressor is designed to convert 50 magawatt X band RF power with pulse length 1.5 microseconds and deliver 200 megawatts with pulse length 106 nanoseconds to the X band accelerating structure.

Xu, Chen; Tantawi, Sami

2014-01-01T23:59:59.000Z

329

Ultrananocrystalline diamond films with optimized dielectric properties for advanced RF MEMS capacitive switches  

DOE Patents [OSTI]

An efficient deposition process is provided for fabricating reliable RF MEMS capacitive switches with multilayer ultrananocrystalline (UNCD) films for more rapid recovery, charging and discharging that is effective for more than a billion cycles of operation. Significantly, the deposition process is compatible for integration with CMOS electronics and thereby can provide monolithically integrated RF MEMS capacitive switches for use with CMOS electronic devices, such as for insertion into phase array antennas for radars and other RF communication systems.

Sumant, Anirudha V.; Auciello, Orlando H.; Mancini, Derrick C.

2013-01-15T23:59:59.000Z

330

Compact organic vapor jet printing print head  

DOE Patents [OSTI]

A first device is provided. The first device includes a print head, and a first gas source hermetically sealed to the print head. The print header further includes a first layer comprising a plurality of apertures, each aperture having a smallest dimension of 0.5 to 500 microns. A second layer is bonded to the first layer. The second layer includes a first via in fluid communication with the first gas source and at least one of the apertures. The second layer is made of an insulating material.

Forrest, Stephen R; McGraw, Gregory

2013-12-24T23:59:59.000Z

331

Chemical Technology Division annual technical report, 1993  

SciTech Connect (OSTI)

Chemical Technology (CMT) Division this period, conducted research and development in the following areas: advanced batteries and fuel cells; fluidized-bed combustion and coal-fired magnetohydrodynamics; treatment of hazardous waste and mixed hazardous/radioactive waste; reaction of nuclear waste glass and spent fuel under conditions expected for an unsaturated repository; separating and recovering transuranic elements, concentrating radioactive waste streams with advanced evaporators, and producing {sup 99}Mo from low-enriched uranium; recovering actinide from IFR core and blanket fuel in removing fission products from recycled fuel, and disposing removal of actinides in spent fuel from commercial water-cooled nuclear reactors; and physical chemistry of selected materials in environments simulating those of fission and fusion energy systems. The Division also conducts basic research in catalytic chemistry associated with molecular energy resources and novel ceramic precursors; materials chemistry of superconducting oxides, electrified metal/solution interfaces, molecular sieve structures, thin-film diamond surfaces, effluents from wood combustion, and molten silicates; and the geochemical processes involved in water-rock interactions. The Analytical Chemistry Laboratory in CMT also provides a broad range of analytical chemistry support.

Battles, J.E.; Myles, K.M.; Laidler, J.J.; Green, D.W.

1994-04-01T23:59:59.000Z

332

Chemical Technology Division, Annual technical report, 1991  

SciTech Connect (OSTI)

Highlights of the Chemical Technology (CMT) Division's activities during 1991 are presented. In this period, CMT conducted research and development in the following areas: (1) electrochemical technology, including advanced batteries and fuel cells; (2) technology for fluidized-bed combustion and coal-fired magnetohydrodynamics; (3) methods for treatment of hazardous and mixed hazardous/radioactive waste; (4) the reaction of nuclear waste glass and spent fuel under conditions expected for an unsaturated repository; (5) processes for separating and recovering transuranic elements from nuclear waste streams; (6) recovery processes for discharged fuel and the uranium blanket in the Integral Fast Reactor (IFR); (7) processes for removal of actinides in spent fuel from commercial water-cooled nuclear reactors and burnup in IFRs; and (8) physical chemistry of selected materials in environments simulating those of fission and fusion energy systems. The Division also conducts basic research in catalytic chemistry associated with molecular energy resources; chemistry of superconducting oxides and other materials of interest with technological application; interfacial processes of importance to corrosion science, catalysis, and high-temperature superconductivity; and the geochemical processes involved in water-rock interactions occurring in active hydrothermal systems. In addition, the Analytical Chemistry Laboratory in CMT provides a broad range of analytical chemistry support services to the technical programs at Argonne National Laboratory (ANL).

Not Available

1992-03-01T23:59:59.000Z

333

RF heating systems evolution for the WEST project  

SciTech Connect (OSTI)

Tore Supra is dedicated to long pulse operation at high power, with a record in injected energy of 1 GJ (2.8 MW 380 s) and an achieved capability of 12 MW injected power delivered by 3 RF systems: Lower Hybrid Current Drive (LHCD), Ion Cyclotron Resonance Heating (ICRH) and Electron Cyclotron Resonance Heating (ECRH). The new WEST project (W [tungsten] Environment in Steady-state Tokamak) aims at fitting Tore Supra with an actively cooled tungsten coated wall and a bulk tungsten divertor. This new device will offer to ITER a test bed for validating the relevant technologies for actively cooled metallic components, with D-shaped H-mode plasmas. For WEST operation, different scenarii able to reproduce ITER relevant conditions in terms of steady state heat loads have been identified, ranging from a high RF power scenario (15 MW, 30 s) to a high fluence scenario (10 MW, 1000 s). This paper will focus on the evolution of the RF systems required for WEST. For the ICRH system, the main issues are its ELM resilience and its CW compatibility, three new actively cooled antennas are being designed, with the aim of reducing their sensitivity to the load variations induced by ELMs. The LH system has been recently upgraded with new klystrons and the PAM antenna, the possible reshaping of the antenna mouths is presently studied for matching with the magnetic field line in the WEST configuration. For the ECRH system, the device for the poloidal movement of the mirrors of the antenna is being changed for higher accuracy and speed.

Magne, R.; Achard, J.; Armitano, A.; Argouarch, A.; Berger-By, G.; Bernard, J. M.; Bouquey, F.; Charabot, N.; Colas, L.; Corbel, E.; Delpech, L.; Ekedahl, A.; Goniche, M.; Guilhem, D.; Hillairet, J.; Jacquot, J.; Joffrin, E.; Litaudon, X.; Lombard, G.; Mollard, P. [CEA, IRFM, F-13108 Saint-Paul-lez-Durance (France); and others

2014-02-12T23:59:59.000Z

334

MHD simulation of RF current drive in MST  

SciTech Connect (OSTI)

Auxiliary heating and current drive using RF waves such as the electron Bernstein wave (EBW) promises to advance the performance of the reversed field pinch (RFP). In previous computational work [1], a hypothetical edge-localized current drive is shown to suppress the tearing activity which governs the macroscopic transport properties of the RFP. The ideal conditions for tearing stabilization include a reduced toroidal induction, and precise width and radial position of the Gaussian-shaped external current drive. In support of the EBW experiment on the Madison Symmetric Torus, an integrated modeling scheme now incorporates ray tracing and Fokker-Plank predictions of auxiliary current into single fluid MHD. Simulations at low Lundquist number (S ? 10{sup 4}) generally agree with the previous work; significantly more burdensome simulations at MST-like Lundquist number (S ? 310{sup 6}) show unexpected results. The effect on nonlinearly saturated current profile by a particular RF-driven external force decreases in magnitude and widens considerably as the Lundquist number increases toward experimental values. Simulations reproduce the periodic current profile relaxation events observed in experiment (sawteeth) in the absence of current profile control. Reduction of the tearing mode amplitudes is still observable; however, reduction is limited to periods between the large bursts of magnetic activity at each sawtooth. The sawtoothing pattern persists with up to 10 MW of externally applied RF power. Periods with prolonged low tearing amplitude are predicted with a combination of external current drive and a reduced toroidal loop voltage, consistent with previous conclusions. Finally, the resistivity profile is observed to have a strong effect on the optimal externally driven current profile for mode stabilization.

Hendries, E. R.; Anderson, J. K.; Forest, C. B.; Reusch, J. A.; Seltzman, A. H.; Sovinec, C. R. [University of Wisconsin, Madison WI (United States); Diem, S. [Oak Ridge National Laboratory, Oak Ridge TN (United States); Harvey, R. W. [CompX, Del Mar, CA (United States)

2014-02-12T23:59:59.000Z

335

Study of AC/RF properties of SRF ingot niobium  

SciTech Connect (OSTI)

In an attempt to correlate the performance of superconducting radiofrequency cavities made of niobium with the superconducting properties, we present the results of the magnetization and ac susceptibility of the niobium used in the superconducting radiofrequency cavity fabrication. The samples were subjected to buffer chemical polishing (BCP) surface and high temperature heat treatments, typically applied to the cavities fabrications. The analysis of the results show the different surface and bulk ac conductivity for the samples subjected to BCP and heat treatment. Furthermore, the RF surface impedance is measured on the sample using a TE011 microwave cavity for a comparison to the low frequency measurements.

Dhakal, Pashupati; Tsindlekht, Menachem I.; Genkin, Valery M.; Ciovati, Gianluigi; Myneni, Ganapati Rao

2013-09-01T23:59:59.000Z

336

The modeling of RF stacking of protons in the Accumulator  

SciTech Connect (OSTI)

When the Run2 collider program is terminated in 2009, the present pbar source will be available for other usages. One possible application is to convert the Antiproton Accumulator to a proton accumulator so that the beam power from the Main Injector could be greatly enhanced [1]. The Accumulator has the unique feature of very large momentum acceptance. It is possible to stack 3-4 Booster batches in the longitudinal phase space before transferring them to the Main Injector or Recycler. This note shows the simulation of RF stacking using the code ESME [2].

Yoon, Phil S.; /Fermilab /Rochester U.; McGinnis, David P.; Chou, Weiren; /Fermilab

2005-06-01T23:59:59.000Z

337

Fabrication Processes for the PEP II RF Cavities  

SciTech Connect (OSTI)

This paper presents the major steps used in the fabrication of the 26 RF Cavities required for the PEP-II B-factory. Several unique applications of conventional processes have been developed and successfully implemented: electron beam welding (EBW), with minimal porosity, of .75 inch (19 mm) copper cross-sections; extensive 5-axis milling of water channels; electroplating of .37 inch (10 mm) thick OFE copper; tuning of the cavity by profiling beam noses prior to final joining with the cavity body; and machining of the cavity interior, are described here.

Franks, R.Mark; /LLNL, Livermore; Rimmer, Robert A.; /LBL, Berkeley; Schwarz, Heinz; /SLAC

2011-09-01T23:59:59.000Z

338

THERMAL MODELING OF ION EXCHANGE COLUMNS WITH SPHERICAL RF RESIN  

SciTech Connect (OSTI)

Models have been developed to simulate the thermal performance of RF columns fully loaded with radioactive cesium. Temperature distributions and maximum temperatures across the column were calculated during Small Column Ion Exchange (SCIX) process upset conditions with a focus on implementation at Hanford. A two-dimensional computational modeling approach was taken to include conservative, bounding estimates for key parameters such that the results will provide the maximum centerline temperatures achievable under the design configurations using a feed composition known to promote high cesium loading on RF. The current full-scale design for the SCIX system includes a central cooling tube, and one objective of these calculations was to examine its elimination to simplify the design. Results confirmed that a column design without a central cooling tube is feasible for RF, allowing for the possibility of significant design simplifications if it can be assumed that the columns are always filled with liquid. With active cooling through the four outer tubes, the maximum column diameter expected to maintain the temperature below the assumed media and safety limits is 26 inches, which is comparable to the current design diameter. Additional analysis was conducted to predict the maximum column temperatures for the previously unevaluated accident scenario involving inadvertent drainage of liquid from a cesium-saturated column, with retention of the ion exchange media and cesium in the column. As expected, much higher maximum temperatures are observed in this case due to the poor heat transfer properties of air versus liquid. For this hypothetical accident scenario involving inadvertent and complete drainage of liquid from a cesium-saturated column, the modeling results indicate that the maximum temperature within a 28 inch diameter RF column with external cooling is expected to exceed 250 C within 2 days, while the maximum temperature of a 12 inch column is maintained below 100 C. In addition, the calculation results demonstrate that the cooling tube system external to an air-filled column is not highly effective at reducing the maximum temperature, but the baseline design using a central cooling tube inside the column provides sufficient cooling to maintain the maximum temperature near the assumed safety limit.

Lee, S.; King, W.

2009-12-30T23:59:59.000Z

339

Beam dynamics studies for transverse electromagnetic mode type rf deflectors  

DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

We have performed three-dimensional simulations of beam dynamics for transverse electromagnetic mode (TEM) type rf deflectors: normal and superconducting. The compact size of these cavities as compared to the conventional TM110 type structures is more attractive particularly at low frequency. Highly concentrated electromagnetic fields between the parallel bars provide strong electrical stability to the beam for any mechanical disturbance. An array of six 2-cell normal conducting cavities or a single cell superconducting structure is enough to produce the required vertical displacement at the target point. Both the normal and superconducting structures show very small emittance dilution due to the vertical kick of the beam.

Ahmed, Shahid; Krafft, Geoffrey A.; Deitrick, Kirsten; De Silva, Subashini U.; Delayen, Jean R.; Spata, Mike; Tiefenback, Michael; Hofler, Alicia; Beard, Kevin

2012-02-01T23:59:59.000Z

340

Frequency and amplitude control for an experimental linac rf drive  

E-Print Network [OSTI]

, India Chair of Advisory Committee: Dr. S. P. Bhattacharyya, The Texas Accelerator Center (TAC) experimental linear accelerator uses a radio- frequency quadrupole (RFQ) to accelerate a 10 mA beam of H ions to 500 keV. It is to be used as an injector... to form a high-energy input beam for large circular accelerators. The pulsed beam will require 100 kW peak rf power at 473 MHz. To satisfy the beam dynamics requirements for particle acceleration and to minimize beam spill, the frequency of the source...

Atre, Mahesh Purushottam

1992-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "division head rf" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Optical Emission of Dusty RF Discharges: Experiment and Simulation  

SciTech Connect (OSTI)

The spectral emission of argon atoms in a dusty radio frequence (RF) discharge has been investigated experimentally and in simulations. It was observed that the spatially and temporally resolved emission of the argon atoms in the dusty discharge was increased compared to the dust-free case during sheath expansion. The corresponding simulations have revealed that the dust trapped in the sheath of the discharge leads to a small, but important, increase of the amount of high-energy electrons that in turn leads to an increased argon emission.

Melzer, A.; Lewerentz, L.; Schneider, R. [Institute of Physics, University Greifswald, Felix-Hausdorff-Str. 6, 17489 Greifswald (Germany); Huebner, S. [Institute of Physics, University Greifswald, Felix-Hausdorff-Str. 6, 17489 Greifswald (Germany); Department of Applied Physics, Technical University Eindhoven, NL-5600 MB Eindhoven (Netherlands); Matyash, K. [Max-Planck-Institute for Plasma Physics, EURATOM Association, D-17491 Greifswald (Germany); Ikkurthi, V. R. [Institute for Plasma Research, Bhat, Ghandinagar, Gujarat (India)

2011-11-29T23:59:59.000Z

342

Index of /research/alcator/facility/Procedures/RF  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun withconfinementEtching.348ASSEMBLY [ICO] Name Last modifiedPOWER [ICO] NameRF

343

Microsoft PowerPoint - rf_5year_review  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: VegetationEquipment Surfaces andMapping RichlandScattering PropertiesTechniqueresultsReview March 11,7,RF

344

VICE CHANCELLOR Signature of Head of School  

E-Print Network [OSTI]

VICE CHANCELLOR Signature of Head of School Date (dd/mm/yy) Following is a report on the professional and consultative work of my School/section over the twelve months of (year) School/Section One. Yes No (Nil Return) Total number of staff within School/Section at year end who are eligible to engage

Tobar, Michael

345

The Head-Neck Sensory Motor System  

E-Print Network [OSTI]

The Head-Neck Sensory Motor System Edited by Alain Berthoz Laboratoire de Physiologie, sideslip, and thrust) determine its loca- tion in space, and rotations (yaw, pitch, and roll) change its, no functional significance can be attributed to this multiple sampling. Oculomotor System of Calliphora

346

Judith Sheine Professor and Department Head  

E-Print Network [OSTI]

of Environmental Design, Department of Architecture Chair, 2002- present Professor, 2002 - present; AssociateJudith Sheine Professor and Department Head Department of Architecture School of Architecture) 346-3626 e-mail: jesheine@uoregon.edu Education 1979 Princeton University, School of Architecture

347

Probability Primer 1 Running head: PROBABILITY PRIMER  

E-Print Network [OSTI]

provides the opportunity to draw upon work in computer science, engineering, mathematics, and statisticsProbability Primer 1 Running head: PROBABILITY PRIMER A Primer on Probabilistic Inference Thomas L. Griffiths Department of Psychology University of California, Berkeley Alan Yuille Department of Statistics

Yuille, Alan L.

348

Department Heads Meeting D. MacFarlane  

E-Print Network [OSTI]

Department Heads Meeting D. MacFarlane March 21, 2013 #12;Snowmass working groups Snowmass web-7 at SLAC Energy Frontier All Hands: » April 3-6 at Brookhaven (web site) » June 30-July 3 at U. Washington a world leading cosmic frontier program » Cosmology, cosmic ray, dark matter & dark energy emphasis

Wechsler, Risa H.

349

Nuclear Science Division, 1995--1996 annual report  

SciTech Connect (OSTI)

This report describes the activities of the Nuclear Science Division (NSD) for the two-year period, January 1, 1995 to January 1, 1997. This was a time of major accomplishments for all research programs in the Division-many of which are highlighted in the reports of this document.

Poskanzer, A.M. [ed.

1997-02-01T23:59:59.000Z

350

ENVIRONMENT, SAFETY, HEALTH, AND QUALITY DIVISION Chapter 42: Subcontractor Safety  

E-Print Network [OSTI]

ENVIRONMENT, SAFETY, HEALTH, AND QUALITY DIVISION Chapter 42: Subcontractor Safety Non-green Work Laboratory Environment, Safety, Health, and Quality Division Chapter 42 | Non-green Work Procedure Step is classified as green, follows the Subcontractor Safety: Green Work Procedure. If not, continues

Wechsler, Risa H.

351

Southwest Research Institute Signal Exploitation and Geolocation Division  

E-Print Network [OSTI]

Southwest Research Institute ® Signal Exploitation and Geolocation Division CERTIFIED TO ISO 9001:2008 BY LLOYD'S REGISTER QUALITY ASSURANCE APRIL 1, 2012 CERTIFICATE NUMBER: UQA 0111601 ISO 9001:2008 Quality to have the division quality management system certified to the stringent quality standards of ISO 9001

Chapman, Clark R.

352

Student Financial Services Division of Enrollment and Access  

E-Print Network [OSTI]

Student Financial Services Division of Enrollment and Access 2011-2012 Tuition Scholarship Program: Student Financial Services Division of Enrollment and Access Centennial Hall-1065 Campus Delivery Fort Collins, CO 80523-1065 FAX (970) 491-5010 Eligibility Criteria* For a student to qualify

353

Student Financial Services Division of Enrollment and Access  

E-Print Network [OSTI]

Student Financial Services Division of Enrollment and Access Summer 2012 Tuition Scholarship required for Fall/Spring; available in August Return Completed Form to: Student Financial Services Division-5010 Eligibility Criteria* For a student to qualify for this scholarship: · The student must be a Spouse1

354

CONDENSED MATTER THEORIST, MATERIALS SCIENCE DIVISION ARGONNE NATIONAL LABORATORY  

E-Print Network [OSTI]

6/29/11 CONDENSED MATTER THEORIST, MATERIALS SCIENCE DIVISION ARGONNE NATIONAL LABORATORY Argonne Division, preferably by e-mail (norman@anl.gov), otherwise by regular mail (MSD-223, Argonne National Lab, Argonne, IL 60439). Please use the subject line "CMT Search" in any e-mail correspondence. Argonne

355

Division of Human Resources Retirement Renewed Membership & Reemployment Restrictions  

E-Print Network [OSTI]

Division of Human Resources Retirement Renewed Membership & Reemployment Restrictions Questions employer after you have been retired for 12 calendar months. #12;Division of Human Resources Retirement Renewed Membership & Reemployment Restrictions Questions (813) 974-2970 Rev. 02/2012 If you are reemployed

Meyers, Steven D.

356

Mason Gross School of the Arts Extension Division  

E-Print Network [OSTI]

Mason Gross School of the Arts Extension Division Practice Your Passion! 2012-2013 Now Satellite School See page 7 within! #12;Main Office Mason Gross Extension Division Marryott Music Building 81 George Street New Brunswick, NJ 08901 Phone: 732-932-8618 Fax: 732-932-3140 Email: extension

Goodman, Robert M.

357

LIBRARY COMMITTEE BERKELEY DIVISION of the ACADEMIC SENATE  

E-Print Network [OSTI]

LIBRARY COMMITTEE BERKELEY DIVISION of the ACADEMIC SENATE Annual Report 1996-97 The Library administration of the Library and perform[ing] such other duties relative to the Library as may be committed to the Division." · In accordance with this charge, the Library Committee took action on the following topics

California at Berkeley, University of

358

RESEARCH CENTER REVIEW GUIDELINES DIVISION OF SOCIAL SCIENCES  

E-Print Network [OSTI]

and educational effectiveness of their programs, raise critical issues within the Center, and evaluate their plans's program or programs, including educational effectiveness 3. The effective utilization of available, the division, and external scholars. Center program reviews serve as important evidence to the division

California at Santa Cruz, University of

359

TO: HR and Business Contacts FROM: Division of Human Resources  

E-Print Network [OSTI]

TO: HR and Business Contacts FROM: Division of Human Resources DATE: September 24, 2012 RE: Reminder: Human Resources Fall 2012 Forum This is a reminder that you will need to register online by the Division of Human Resources, this forum will include information about benefits updates to annual

Almor, Amit

360

NUCLEAR SCIENCE AND TECHNOLOGY DIVISION OAK RIDGE NATIONAL LABORATORY  

E-Print Network [OSTI]

NUCLEAR SCIENCE AND TECHNOLOGY DIVISION OAK RIDGE NATIONAL LABORATORY U.S. DEPARTMENT OF ENERGY Rennich, Phil Spampinato (spampinatop@ornl.gov, 865-576-5267) Equipment Decommissioning and Disposition September 1, 2004 Oak Ridge National Laboratory #12;2 NUCLEAR SCIENCE AND TECHNOLOGY DIVISION OAK RIDGE

McDonald, Kirk

Note: This page contains sample records for the topic "division head rf" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

BUSINESS AND ACCOUNTANCY DIVISION 2003-2005 CATALOG UPDATE  

E-Print Network [OSTI]

BUSINESS AND ACCOUNTANCY DIVISION 2003-2005 CATALOG UPDATE Changes effective 2004-2005 Accounting the following admission requirements before enrolling in upper division business and/or accounting courses: 1 and Debate COMM 381 Business and Professional Communication STAT 190 Basic Statistics OR STAT 290 Statistics

Gering, Jon C.

362

ADVANCED LIGHT SOURCE DIVISION FY2008 SELF-ASSESSMENT REPORT  

E-Print Network [OSTI]

....................................................................3 E4. Division participates in pollution prevention, energy conservation, recycling, and wasteADVANCED LIGHT SOURCE DIVISION FY2008 SELF-ASSESSMENT REPORT November 7, 2008 Prepared by to confined space, energized electrical work); waste management criteria (SAAs, waste sampling, NCARs

Knowles, David William

363

System studies of rf current drive for MST  

SciTech Connect (OSTI)

Two rf schemes are being studied on the MST reversed field pinch for their potential in current profile control experiments. MHD modeling has shown that a substantial externally-driven off axis parallel current can improve stability of the dominant core tearing modes. A radially localized axisymmetric population of fast electrons has been observed by SXR emission during LH injection (100kW at 800MHz), and is consistent with CQL3D modeling which predicts a small driven current. Computational work suggests that doubling the input power will statistically improve the LH-induced SXR signal to background ratio, and that about 2MW of injected power (an order of magnitude increase) will drive enough current for stabilization of tearing modes. Additionally, a 1 MW 5.5 GHz electron Bernstein wave (EBW) experiment is under construction, which utilizes a very simple and compact antenna compatible with the demands of the RFP. EBW allows access to electron cyclotron heating and current drive in the overdense plasma. Coupling of the external electromagnetic wave to the EBW has been demonstrated, and initial tests at {approx}100kW power have produced a small, localized xray flux consistent with rf heating and high diffusivity of fast electrons. Computational work is currently underway to answer the very important questions of how much power is required, and what level of electron diffusivity is tolerable, to generate a consequential amount of EBW current.

Anderson, J. K.; Burke, D. R.; Forest, C. B.; Goetz, J. A.; Hendries, E. R.; Seltzman, A. H.; Thomas, M. A. [Department of Physics, University of Wisconsin, Madison, WI (United States); Diem, S. [Oak Ridge National Laboratory, Oak Ridge TN (United States); Harvey, R. W. [CompX, Del Mar, CA (United States); Kaufman, M. C. [Department of Physics, University of Wisconsin, Madison, WI (United States); Oak Ridge National Laboratory, Oak Ridge, TN (United States)

2011-12-23T23:59:59.000Z

364

Biology and Medicine Division annual report, 1985  

SciTech Connect (OSTI)

This book briefly describes the activities of the Biology and Medicine Division of the Lawrence Berkeley Laboratory. During the past year the Donner Pavilion program on the treatment of arteriovenous malformations in the brain has chalked up very significant successes. The disease control rate has been high and objective measures of success using cerebral angiography have been established. The new high resolution positron emitting tomographic imager has been demonstrated to operate successfully. In the Radiation Biophysics program, the availability of higher mass ions up to uranium has allowed us cell and tissue studies in a radiation domain that is entirely new. Using uranium beams, investigators have already made new and exciting findings that are described in the body of the report.

Not Available

1986-04-01T23:59:59.000Z

365

Chemical Technology Division annual technical report, 1990  

SciTech Connect (OSTI)

Highlights of the Chemical Technology (CMT) Division's activities during 1990 are presented. In this period, CMT conducted research and development in the following areas: (1) electrochemical technology, including advanced batteries and fuel cells; (2) technology for coal- fired magnetohydrodynamics and fluidized-bed combustion; (3) methods for recovery of energy from municipal waste and techniques for treatment of hazardous organic waste; (4) the reaction of nuclear waste glass and spent fuel under conditions expected for a high-level waste repository; (5) processes for separating and recovering transuranic elements from nuclear waste streams, concentrating plutonium solids in pyrochemical residues by aqueous biphase extraction, and treating natural and process waters contaminated by volatile organic compounds; (6) recovery processes for discharged fuel and the uranium blanket in the Integral Fast Reactor (IFR); (7) processes for removal of actinides in spent fuel from commercial water-cooled nuclear reactors and burnup in IFRs; and (8) physical chemistry of selected materials in environments simulating those of fission and fusion energy systems. The Division also has a program in basic chemistry research in the areas of fluid catalysis for converting small molecules to desired products; materials chemistry for superconducting oxides and associated and ordered solutions at high temperatures; interfacial processes of importance to corrosion science, high-temperature superconductivity, and catalysis; and the geochemical processes responsible for trace-element migration within the earth's crust. The Analytical Chemistry Laboratory in CMT provides a broad range of analytical chemistry support services to the scientific and engineering programs at Argonne National Laboratory (ANL). 66 refs., 69 figs., 6 tabs.

Not Available

1991-05-01T23:59:59.000Z

366

3D head anthropometric analysis Reyes Enciso*ab  

E-Print Network [OSTI]

a current three-dimensional image-based face modeling technique using a plaster head model. We will also. In this paper we acquired and validated 3-dimensional images of a plaster head using structured-light image

Shahabi, Cyrus

367

Gas cushion control of OVJP print head position  

DOE Patents [OSTI]

An OVJP apparatus and method for applying organic vapor or other flowable material to a substrate using a printing head mechanism in which the print head spacing from the substrate is controllable using a cushion of air or other gas applied between the print head and substrate. The print head is mounted for translational movement towards and away from the substrate and is biased toward the substrate by springs or other means. A gas cushion feed assembly supplies a gas under pressure between the print head and substrate which opposes the biasing of the print head toward the substrate so as to form a space between the print head and substrate. By controlling the pressure of gas supplied, the print head separation from the substrate can be precisely controlled.

Forrest, Stephen R

2014-10-07T23:59:59.000Z

368

A 3-D display head-set for personalized computing  

E-Print Network [OSTI]

This thesis covers the design and implementation of a binocular display head-set akin to Dr . Ivan E. Sutherland's head-mounted display, but using several new technologies and new techniques in computer graphics: small ...

Callahan, Mark A

1983-01-01T23:59:59.000Z

369

1 INTRODUCTION High-head storage hydropower plants operate  

E-Print Network [OSTI]

1 INTRODUCTION High-head storage hydropower plants operate their turbines during periods of high Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland ABSTRACT: High-head storage hydropower plants

Floreano, Dario

370

Type B Accident Investigation Board Report on the Head Injury...  

Broader source: Energy.gov (indexed) [DOE]

on the Head Injury to a Miner at the Waste Isolation Pilot Plant, Carlsbad, New Mexico - August 25, 2004 Type B Accident Investigation Board Report on the Head Injury to a Miner at...

371

STATUS OF GEOTHERMAL RESERVOIR ENGINEERING RESEARCH PROJECTS SUPPORTED BY USDOE/DIVISION OF GEOTHERMAL ENERGY  

E-Print Network [OSTI]

BY USDOE/DIVISION OF GEOTHERMAL ENERGY J J. H. Howard and W.BY USWE/DIVISION O GEOTHERMAL ENERGY F Berkeley, CaliforniaWE), Division of Geothermal Energy (mS) proposed that

Howard, J.H.

2011-01-01T23:59:59.000Z

372

Software & Services Group Developer Products Division Copyright 2011, Intel Corporation. All rights reserved.  

E-Print Network [OSTI]

Software & Services Group Developer Products Division Copyright 2011, Intel Corporation. All & Services Group Developer Products Division Copyright 2011, Intel Corporation. All rights reserved. *Other Division Copyright 2011, Intel Corporation. All rights reserved. *Other brands and names are the property

California at Berkeley, University of

373

Study of lithium diffusion in RF sputtered Nickel/Vanadium mixed oxides thin films  

E-Print Network [OSTI]

Study of lithium diffusion in RF sputtered Nickel/Vanadium mixed oxides thin films F. Artuso a lithium insertion inside RF sputtered Ni/V mixed oxides thin films have been investigated employing, showed three steps clearly involved in the intercalation mechanism of lithium in the oxide films: (i

Artuso, Florinda

374

High tunability barium strontium titanate thin films for rf circuit applications  

E-Print Network [OSTI]

High tunability barium strontium titanate thin films for rf circuit applications N. K. Pervez,a) P) Large variations in the permittivity of rf magnetron sputtered thin-film barium strontium titanate have/cm. © 2004 American Institute of Physics. [DOI: 10.1063/1.1818724] Barium strontium titanate (BST) is a solid

York, Robert A.

375

Ambient-RF-Energy-Harvesting Sensor Node with Capacitor-Leakage-Aware Duty Cycle Control  

E-Print Network [OSTI]

Ambient-RF-Energy-Harvesting Sensor Node with Capacitor-Leakage-Aware Duty Cycle Control Ryo (WSN) that are solely powered by ambient RF power. Different from all other energy harvesting WSN for an energy storage in the energy harvesting system because of its efficient charge and discharge performance

Tentzeris, Manos

376

Study of high pressure gas filled RF cavities for muon collider  

E-Print Network [OSTI]

Muon collider is a considerable candidate of the next-generation high-energy lepton collider machine. Operating an RF cavity in a multi-Tesla magnet is a critical requirement in a muon accelerator and a cooling channel. However, the maximum RF gradient in a vacuum RF cavity is strongly limited by an external magnetic field. Dense hydrogen gas filled RF cavity has been proposed since it is functional of generating a high RF accelerating gradient in a strong magnetic field and making an ionization cooling process at the same time. A critical issue of the cavity is a beam- induced plasma that consumes a considerable amount of RF power. The gas filled RF test cell was made and measured the RF loading due to a beam-induced plasma by using an intense proton beam at Fermilab. By doping an electronegative gas in dense hydrogen, the plasma loading effect is significantly mitigated. The result shows that the cavity is functional with a muon collider beam. Recent progress is shown in this presentation.

Yonehara, Katsuya

2015-01-01T23:59:59.000Z

377

RF propagation in an HVAC duct system: impulse response characteristics of the channel  

E-Print Network [OSTI]

RF propagation in an HVAC duct system: impulse response characteristics of the channel Pavel V, the heating, ventilation, and air conditioning (HVAC) duct system in buildings is a complex network of hollow at RF and microwave frequencies of com- mon interest. HVAC ducts can be used as a wireless communication

Stancil, Daniel D.

378

An All Metal High Power Circularly Polarized 100 MW RF Load  

SciTech Connect (OSTI)

A compact RF load has been designed using a cascaded array of lossy radial RF chokes to dissipate 100 MW peak and 8 kW average power uniformly along the length of the load. Operation in the circularly polarized Te{_}11 mode assures uniform dissipation azimuthally as well.

Fowkes, W.R.; Jongewaard, E.N.; Loewen, R.J.; Tantawi, S.G.; Vlieks, A.E.; /SLAC

2011-08-30T23:59:59.000Z

379

Power Reduction of CMP Communication Networks via RF-Interconnects M-C. Frank Chang  

E-Print Network [OSTI]

- alized via integration of Radio Frequency Interconnect (RF- I) through on-chip transmission lines of analog waves over on- chip transmission lines. These technologies include radio fre- quency interconnect latency and low energy consumption [5][7]. RF-I transmission lines provide single-cycle cross

Cong, Jason "Jingsheng"

380

Permanent-magnet helicon sources and arrays: a new type of rf plasma Francis F. Chena)  

E-Print Network [OSTI]

Permanent-magnet helicon sources and arrays: a new type of rf plasma Francis F. Chena) and Humberto mechanism of RF coupling. However, the requirement of a dc magnetic field has prevented their wide acceptance in industry. The use of permanent magnets greatly simplifies helicon sources, and arrays of small

Chen, Francis F.

Note: This page contains sample records for the topic "division head rf" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Permanent-magnet helicon sources and arrays: A new type of rf plasmaa... Francis F. Chenb  

E-Print Network [OSTI]

Permanent-magnet helicon sources and arrays: A new type of rf plasmaa... Francis F. Chenb mechanism of rf coupling. However, the requirement of a dc magnetic field has prevented their wide acceptance in industry. The use of permanent magnets greatly simplifies helicon sources, and arrays of small

Chen, Francis F.

382

Automatic Tissue Classification for the Human Head from Multispectral MRI  

E-Print Network [OSTI]

1 Automatic Tissue Classification for the Human Head from Multispectral MRI Tolga Tasdizen, David for classifying multispectral MR scans of the human head into nine tissue classes. User initialization is adopted. #12;Chapter 1 Introduction Classification of head magnetic resonance imaging (MRI) data

Utah, University of

383

Oculomotor Responses to Active Head Movements in Darkness  

E-Print Network [OSTI]

information on head rotation from the vestibular system to the saccade-generating mechanism in the brain stem482 Oculomotor Responses to Active Head Movements in Darkness Formulation and Testing Sistemistica, Universit di Pavia, Pavia, Italy Passive head rotation in darkness produces vestibular nystagmus

Ramat, Stefano

384

Materials and Molecular Research Division: Annual report, 1986  

SciTech Connect (OSTI)

Research activities are reported under the following headings: materials sciences, chemical sciences, nuclear sciences, fossil energy, energy storage systems, and work for others. (DLC)

Phillips, N.E.; Muller, R.H.; Peterson, C.V.

1987-07-01T23:59:59.000Z

385

Nuclear magnetic resonance apparatus having semitoroidal rf coil for use in topical NMR and NMR imaging  

DOE Patents [OSTI]

An improved nuclear magnetic resonance (NMR) apparatus for use in topical magnetic resonance (TMR) spectroscopy and other remote sensing NMR applications includes a semitoroidal radio-frequency (rf) coil. The semitoroidal rf coil produces an effective alternating magnetic field at a distance from the poles of the coil, so as to enable NMR measurements to be taken from selected regions inside an object, particularly including human and other living subjects. The semitoroidal rf coil is relatively insensitive to magnetic interference from metallic objects located behind the coil, thereby rendering the coil particularly suited for use in both conventional and superconducting NMR magnets. The semitoroidal NMR coil can be constructed so that it emits little or no excess rf electric field associated with the rf magnetic field, thus avoiding adverse effects due to dielectric heating of the sample or to any other interaction of the electric field with the sample.

Fukushima, Eiichi (Los Alamos, NM); Roeder, Stephen B. W. (La Mesa, CA); Assink, Roger A. (Albuquerque, NM); Gibson, Atholl A. V. (Bryan, TX)

1986-01-01T23:59:59.000Z

386

Dependence of nuclear spin singlet lifetimes on RF spin-locking power  

E-Print Network [OSTI]

We measure the lifetime of long-lived nuclear spin singlet states as a function of the strength of the RF spin-locking field and present a simple theoretical model that agrees well with our measurements, including the low-RF-power regime. We also measure the lifetime of a long-lived coherence between singlet and triplet states that does not require a spin-locking field for preservation. Our results indicate that for many molecules, singlet states can be created using weak RF spin-locking fields: more than two orders of magnitude lower RF power than in previous studies. Our findings suggest that in many biomolecules, singlets and related states with enhanced lifetimes might be achievable in vivo with safe levels of RF power.

Stephen J. DeVience; Ronald L. Walsworth; Matthew S. Rosen

2012-01-06T23:59:59.000Z

387

EFFECTS OF POLLUTANTS ON BIOLOGICAL SYSTEMS. CHAPTER FROM THE ENERGY AND ENVIRONMENT DIVISION ANNUAL REPORT 1979  

E-Print Network [OSTI]

to DOE Division of Geothermal Energy, January 30, 1980.in utilization of geothermal energy that adequate andthe DOE Division of Geothermal Energy. S. L. Phillips and E.

Authors, Various

2010-01-01T23:59:59.000Z

388

E-Print Network 3.0 - acting division chief Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Environmental Compliance Division Chief: Jennifer Melton 301-713-2870 Health & Safety... Division Chief: VACANT 301-713-2870 ... Source: NOAA Marine Fisheries Review...

389

Surface treatment of magnetic recording heads  

DOE Patents [OSTI]

Surface modification of magnetic recording heads using plasma immersion ion implantation and deposition is disclosed. This method may be carried out using a vacuum arc deposition system with a metallic or carbon cathode. By operating a plasma gun in a long-pulse mode and biasing the substrate holder with short pulses of a high negative voltage, direct ion implantation, recoil implantation, and surface deposition are combined to modify the near-surface regions of the head or substrate in processing times which may be less than 5 min. The modified regions are atomically mixed into the substrate. This surface modification improves the surface smoothness and hardness and enhances the tribological characteristics under conditions of contact-start-stop and continuous sliding. These results are obtained while maintaining original tolerances. 15 figs.

Komvopoulos, K.; Brown, I.G.; Wei, B.; Anders, S.; Anders, A.; Bhatia, S.C.

1995-12-19T23:59:59.000Z

390

Head erosion with emittance growth in PWFA  

SciTech Connect (OSTI)

Head erosion is one of the limiting factors in plasma wakefield acceleration (PWFA). We present a study of head erosion with emittance growth in field-ionized plasma from the PWFA experiments performed at the FACET user facility at SLAC. At FACET, a 20.3 GeV bunch with 1.8 Multiplication-Sign 10{sup 10} electrons is optimized in beam transverse size and combined with a high density lithium plasma for beam-driven plasma wakefield acceleration experiments. A target foil is inserted upstream of the plasma source to increase the bunch emittance through multiple scattering. Its effect on beamplasma interaction is observed with an energy spectrometer after a vertical bend magnet. Results from the first experiments show that increasing the emittance has suppressed vapor field-ionization and plasma wakefields excitation. Plans for the future are presented.

Li, S. Z.; Adli, E.; England, R. J.; Frederico, J.; Gessner, S. J.; Hogan, M. J.; Litos, M. D.; Walz, D. R.; Muggli, P.; An, W.; Clayton, C. E.; Joshi, C.; Lu, W.; Marsh, K. A.; Mori, W.; Vafaei, N. [SLAC National Accelerator Laboratory, Menlo Park, CA 94025 (United States) and SLAC National Accelerator Laboratory, Menlo Park, CA 94025 (United States) and University of Oslo, Oslo, N-0316 (Norway) and SLAC National Accelerator Laboratory, Menlo Park, CA 94025 (United States); Max Planck Institute for Physics, Munich (Germany); University of California, Los Angeles, CA 90095 (United States)

2012-12-21T23:59:59.000Z

391

Optimization of UAV Heading for the Ground-to-Air Uplink  

E-Print Network [OSTI]

In this paper we consider a collection of single-antenna ground nodes communicating with a multi-antenna unmanned aerial vehicle (UAV) over a multiple-access ground-to-air wireless communications link. The UAV uses beamforming to mitigate the inter-user interference and achieve spatial division multiple access (SDMA). First, we consider a simple scenario with two static ground nodes and analytically investigate the effect of the UAV heading on the system sum rate. We then study a more general setting with multiple mobile ground-based terminals, and develop an algorithm for dynamically adjusting the UAV heading in order to maximize a lower bound on the ergodic sum rate of the uplink channel, using a Kalman filter to track the positions of the mobile ground nodes. Fairness among the users can be guaranteed through weighting the bound for each user's ergodic rate with a factor inversely proportional to their average data rate. For the common scenario where a high $K$-factor channel exists between the ground node...

Jiang, Feng

2011-01-01T23:59:59.000Z

392

Energy Division progress report, fiscal years 1994--1995  

SciTech Connect (OSTI)

At ORNL, the Energy Division`s mission is to provide innovative solutions to energy and related issues of national and global importance through interdisciplinary research and development. Its goals and accomplishments are described in this progress report for FY 1994 and FY 1995. The Division`s expenditures in FY 1995 totaled 44.9 million. Sixty percent of the divisions work was supported by the US DOE. Other significant sponsors include the US DOT, the US DOD, other federal agencies, and some private organizations. The Division`s programmatic activities cover three main areas: (1) analysis and assessment, (2) transportation systems, and (3) energy use and delivery technologies. Analysis and assessment activities involve energy and resource analysis, preparation of environmental assessments and impact statements, and impact statements, research on emergency preparedness, analysis of energy and environmental needs in developing countries, and transportation analysis. Transportation systems research seeks to improve the quality of both civilian and military transportation efforts. Energy use and delivery technologies focus on building equipment, building envelopes, (walls, roofs, attics, and materials), improvement of energy efficiency in buildings, and electric power systems.

Moser, C.I. [ed.

1996-06-01T23:59:59.000Z

393

Structurefunction of the Na/H Exchanger Regulatory Factor (NHE-RF) 2199 The Journal of Clinical Investigation  

E-Print Network [OSTI]

, Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, North Carolina 27710 representing full-length NHE-RF as well as truncated and mutant forms of NHE-RF were deter- mined using/H exchanger activity that is not regulated by PKA. NHE-RF in the presence of ATP and Mg but not PKA, in

Hall, Randy A

394

Material Selection and Characterization for High Gradient RF Applications  

E-Print Network [OSTI]

The selection of candidate materials for the accelerating cavities of the Compact Linear Collider (CLIC) is carried out in parallel with high power RF testing. The maximum DC breakdown field of copper, copper alloys, refractory metals, aluminium and titanium have been measured with a dedicated setup. Higher maximum fields are obtained for refractory metals and for titanium, which exhibits, however, important damages after conditioning. Fatigue behaviour of copper alloys has been studied for surface and bulk by pulsed laser irradiation and ultrasonic excitation, respectively. The selected copper alloys show consistently higher fatigue resistance than copper in both experiments. In order to obtain the best local properties in the device a possible solution is a bi-metallic assembly. Junctions of molybdenum and copper-zirconium UNS C15000 alloy, achieved by HIP (Hot Isostatic Pressing) diffusion bonding or explosion bonding were evaluated for their mechanical strength. The reliability of the results obtained wit...

Arnau-Izquierdo, G; Heikkinen, S; Ramsvik, T; Sgobba, Stefano; Taborelli, M; Wuensch, W

2007-01-01T23:59:59.000Z

395

RF Design Optimization for New Injector Cryounit at CEBAF  

SciTech Connect (OSTI)

A new injector superconducting RF (SRF) cryounit with one new 2-cell, B=0.6 cavity plus one refurbished 7-cell, B=0.97, C100 style cavity has been re-designed and optimized for the engineering compatibility of existing module for CEBAF operation. The optimization of 2-cell cavity shape for longitudinal beam dynamic of acceleration from 200keV to 533keV and the minimization of transverse kick due to the waveguide couplers to less than 1 mrad have been considered. Operating at 1497MHz, two cavities has been designed into a same footprint of CEBAF original quarter cryomodule to deliver an injection beam energy of 5MeV in less than 0.27{degree} rms bunch length and a maximum energy spread of 5keV.

Wang, Haipeng; Cheng, Guangfeng; Hannon, Fay E.; Hofler, Alicia S.; Kazimi, Reza; Preble, Joe; Rimmer, Robert A.

2013-06-01T23:59:59.000Z

396

A new microphonics measurement method for superconducting RF cavities  

SciTech Connect (OSTI)

Mechanical vibrations of the superconducting cavity, also known as microphonics, cause shifts in the resonant frequency of the cavity. In addition to requiring additional RF power, these frequency shifts can contribute to errors in the closed loop phase and amplitude regulation. In order to better understand these effects, a new microphonics measurement method was developed, and the method was successfully used to measure microphonics on the half-wave superconducting cavity when it was operated in a production style cryostat. The test cryostat held a single ?=0.1 half-wave cavity which was operated at 162.5 MHz [1] and [2]. It's the first time that the National Instruments PXIe-5641R intermediate frequency transceiver has been used for microphonics measurements in superconducting cavities. The new microphonics measurement method and results will be shown and analyzed in this paper.

Gao,Zheng; He,Yuan; Chang,Wei; Powers, Tom [JLAB; Yue,Wei-ming; Zhu,Zheng-long; Chen,Qi

2014-09-01T23:59:59.000Z

397

Results of a preliminary, high power RF thruster test  

SciTech Connect (OSTI)

The objective of this program was to demonstrate a high power electrodeless, RF electric propulsion concept. This was successfully accomplished. No attempt was made to optimize the design of the thruster with regard to physical dimensions, mass flow, nozzle shape, operational frequency, or power level. Measurements made were chamber pressure, total and static pressures at the nozzle exit plane and exhaust tank pressure. Mass flows range from about 0.4 to 1 gm/sec and, assuming perfect gas relationships, specific impulses up to 580 sec were obtained. Typical chamber pressure was 300 torr exhausting to a tank pressure of about 10 torr. Working fluids used were argon, helium and mixtures of the two. No degration of the device was detected after 12 start/stop cycles, about three hours of total run time, and a maximum input power of 70 kW. 10 refs.

Brewer, L.; Karras, T.; Frind, G.; Holmes, D.G.

1989-01-01T23:59:59.000Z

398

National RF Test Facility as a multipurpose development tool  

SciTech Connect (OSTI)

Additions and modifications to the National RF Test Facility design have been made that (1) focus its use for technology development for future large systems in the ion cyclotron range of frequencies (ICRF), (2) expand its applicability to technology development in the electron cyclotron range of frequencies (ECRF) at 60 GHz, (3) provide a facility for ELMO Bumpy Torus (EBT) 60-GHz ring physics studies, and (4) permit engineering studies of steady-state plasma systems, including superconducting magnet performance, vacuum vessel heat flux removal, and microwave protection. The facility will continue to function as a test bed for generic technology developments for ICRF and the lower hybrid range of frequencies (LHRF). The upgraded facility is also suitable for mirror halo physics experiments.

McManamy, T.J.; Becraft, W.R.; Berry, L.A.; Blue, C.W.; Gardner, W.L.; Haselton, H.H.; Hoffman, D.J.; Loring, C.M. Jr.; Moeller, F.A.; Ponte, N.S.

1983-01-01T23:59:59.000Z

399

Nanometer emittance ultralow charge beams from rf photoinjectors  

DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

In this paper we discuss the generation of a new class of high brightness relativistic electron beams, characterized by ultralow charge (0.11 pC) and ultralow normalized emittance (<50??nm ). These beams are created in rf photoinjectors when the laser is focused on the cathode to very small transverse sizes (<30???m rms). In this regime, the charge density at the cathode approaches the limit set by the extraction electric field. By shaping the laser pulse to have a cigarlike aspect ratio (the longitudinal dimension much larger than the transverse dimension) and a parabolic temporal profile, the resulting space charge dominated dynamics creates a uniformly filled ellipsoidal distribution and the emittance can be nearly preserved to its thermal value. We also present a new method, based on a variation of the pepper-pot technique, for single shot measurements of the ultralow emittances for this new class of beams.

Li, R. K.; Roberts, K. G.; Scoby, C. M.; To, H.; Musumeci, P.

2012-09-01T23:59:59.000Z

400

The Development of the Linac Coherent Light Source RF Gun  

E-Print Network [OSTI]

The Linac Coherent Light Source (LCLS) is the first x-ray laser user facility based upon a free electron laser (FEL). In addition to many other stringent requirements, the LCLS XFEL requires extraordinary beam quality to saturate at 1.5 angstroms within a 100 meter undulator.[1] This new light source is using the last kilometer of the three kilometer linac at SLAC to accelerate the beam to an energy as high as 13.6 GeV and required a new electron gun and injector to produce a very bright beam for acceleration. At the outset of the project it was recognized that existing RF guns had the potential to produce the desired beam but none had demonstrated it. This paper describes the analysis and design improvements of the BNL/SLAC/UCLA s-band gun leading to achievement of the LCLS performance goals.

Dowell, David H; Lewandowski, James; Limborg-Deprey, Cecile; Li, Zenghai; Schmerge, John; Vlieks, Arnold; Wang, Juwen; Xiao, Liling

2015-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "division head rf" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Environmental Research Division technical progress report: January 1986--October 1987  

SciTech Connect (OSTI)

Technical process in the various research activities of Argonne National Laboratory's Environmental Research Division is reported for the period 1986-1987. Textual, graphic, and tabular information is used to briefly summarize (in separate chapters) the work of the Division's Atmospheric Physics, Environmental Effects Research, Fundamental Molecular Physics and Chemistry, and Organic Geochemistry and Environmental Instrumentation Programs. Information on professional qualifications, awards, and outstanding professional activities of staff members, as well as lists of publications, oral presentations, special events organized, and participants in educational programs, are provided in appendices at the end of each chapter. Individual projects under each division are processed separately for the data bases.

Not Available

1988-07-01T23:59:59.000Z

402

Chemical Technology Division annual technical report, 1992  

SciTech Connect (OSTI)

In this period, CMT conducted research and development in the following areas: (1) electrochemical technology, including advanced batteries and fuel cells; (2) technology for fluidized-bed combustion and coal-fired magnetohydrodynamics; (3) methods for treatment of hazardous waste, mixed hazardous/radioactive waste, and municipal solid waste; (4) the reaction of nuclear waste glass and spent fuel under conditions expected for an unsaturated repository; (5) processes for separating and recovering transuranic elements from nuclear waste streams, treating water contaminated with volatile organics, and concentrating radioactive waste streams; (6) recovery processes for discharged fuel and the uranium blanket in the Integral Fast Reactor (EFR); (7) processes for removal of actinides in spent fuel from commercial water-cooled nuclear reactors and burnup in IFRs; and (8) physical chemistry of selected materials (corium; Fe-U-Zr, tritium in LiAlO{sub 2} in environments simulating those of fission and fusion energy systems. The Division also conducts basic research in catalytic chemistry associated with molecular energy resources and novel` ceramic precursors; materials chemistry of superconducting oxides, electrified metal/solution interfaces, and molecular sieve structures; and the geochemical processes involved in water-rock interactions occurring in active hydrothermal systems. In addition, the Analytical Chemistry Laboratory in CMT provides a broad range of analytical chemistry support services to the technical programs at Argonne National Laboratory (ANL).

Battles, J.E.; Myles, K.M.; Laidler, J.J.; Green, D.W.

1993-06-01T23:59:59.000Z

403

Next Generation Fast RF Interlock Module and ATCA Adapter for ILC High Availability RF Test Station Demonstration  

SciTech Connect (OSTI)

High availability interlocks and controls are required for the ILC (International Linear Collider) L-Band high power RF stations. A new F3 (Fast Fault Finder) VME module has been developed to process both fast and slow interlocks using FPGA logic to detect the interlock trip excursions. This combination eliminates the need for separate PLC (Programmable Logic Controller) control of slow interlocks. Modules are chained together to accommodate as many inputs as needed. In the next phase of development the F3's will be ported to the new industry standard ATCA (Advanced Telecom Computing Architecture) crate (shelf) via a specially designed VME adapter module with IPMI (Intelligent Platform Management Interface). The goal is to demonstrate auto-failover and hot-swap for future partially redundant systems.

Larsen, R

2009-10-17T23:59:59.000Z

404

Pressurized H_{2} rf Cavities in Ionizing Beams and Magnetic Fields  

SciTech Connect (OSTI)

A major technological challenge in building a muon cooling channel is operating RF cavities in multi-tesla external magnetic fields. We report the first experimental characterization of a high pressure gas-filled 805 MHz RF cavity for use with intense ionizing beams and strong external magnetic fields. RF power consumption by beam-induced plasma was investigated with hydrogen and deuterium gases with pressures between 20 and 100 atm and peak RF gradients between 5 and 50 MV/m. The energy absorption per ion pair-RF cycle ranges from 10?18 to 10?16 J. The low pressure case agrees well with an analytical model based on electron and ion mobilities. Varying concentrations of oxygen gas were investigated to remove free electrons from the cavity and reduce the RF power consumption. Measurements of the electron attachment time to oxygen and rate of ion-ion recombination were also made. Additionally, we demonstrate the operation of the gas-filled RF cavity in a solenoidal field of up to 3 T, finding no major magnetic field dependence. These results indicate that a high pressure gas-filled cavity is potentially a viable technology for muon ionization cooling.

Chung, M.; et al.

2013-10-01T23:59:59.000Z

405

Occupational Hygiene & Chemical Safety Division Department of Environmental Health & Safety  

E-Print Network [OSTI]

Occupational Hygiene & Chemical Safety Division Department of Environmental Health & Safety Risk all connections and fittings prior to start of anesthesia. Carefully pour Isoflurane from Environmental Health & Safety before re-entering the laboratory. REFERENCES 1. Procedure

Machel, Hans

406

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

Energy Research and Development Division FINAL PROJECT REPORT Demonstration: California Energy Commission Prepared by: Electric Power Research Institute #12; Prepared by: Primary: California Energy Commission Jamie Patterson Contract Manager Fernando Pina Office Manager Energy Efficiency

407

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

Energy Research and Development Division FINAL PROJECT REPORT ASSESSMENT OF LARVAL Coastal Boundary Layer Flow SEPTEMBER 2007 CEC5002013049 Prepared for: California Energy Commission Energy Commission Joe O'Hagan Contract Manager Linda Spiegel Office Manager Energy Generation Research

408

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

Energy Research and Development Division FINAL PROJECT REPORT ENERGYEFFICIENT Energy Commission Prepared by: Lawrence Berkeley National Laboratory #12; PREPARED BY: Primary.lbl.gov Contract Number: 500-06-053 Prepared for: California Energy Commission Paul Roggensack Contract Manager

409

Energy Research and Development Division DRAFT PROJECT REPORT  

E-Print Network [OSTI]

Energy Research and Development Division DRAFT PROJECT REPORT NATURAL GAS ENERGY EFFICIENCY IN BUILDINGS Roadmap for Future Research Prepared for: California Energy Commission Prepared by: DNV KEMA Energy & Sustainability MARCH 2014 CEC5002014036D #12; PREPARED BY

410

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

Energy Research and Development Division FINAL PROJECT REPORT SMART GRID ROADMAP FOR RENEWABLES INTEGRATION JULY 2013 CEC5002010029 Prepared for: California Energy Commission Prepared by: California Energy Commission Dave Michel Project Manager Mike Gravely Office Manager Energy Efficiency

411

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

Energy Research and Development Division FINAL PROJECT REPORT SAIC SOLAR DISH CONCENTRATOR WITH STIRLING ENGINE DECEMBER 2007 CEC5002013068 Prepared for: California Energy Commission: 500-00-034-15 Prepared for: California Energy Commission Hassan Mohammed Contract Manager Linda

412

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

Energy Research and Development Division FINAL PROJECT REPORT HYBRID SOLAR LIGHTING5002013067 Prepared for: California Energy Commission Prepared by: Oakridge National Laboratory Insert-04-034-18 Prepared for: California Energy Commission Hassan Mohammed Contract Manager Linda Speigel Office Manager

413

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

Energy Research and Development Division FINAL PROJECT REPORT AUTOMATED ROOFTOP CEC5002013042 Prepared for: California Energy Commission Prepared by: Lawrence Berkeley National Energy Commission Brad Meister Contract Manager Virginia Lew Office Manager Energy Efficiency Research

414

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

Energy Research and Development Division FINAL PROJECT REPORT A SEASONAL DECEMBER 2011 CEC5002013035 Prepared for: California Energy Commission Prepared by: Lawrence Berkeley National Laboratory Berkeley, CA 96270 Contract Number: 500-02-004 Prepared for: California Energy

415

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

Energy Research and Development Division FINAL PROJECT REPORT AN ASSESSMENT: California Energy Commission Prepared by: University of California, Davis #12; PREPARED BY: Primary Number: 500-01-016 Prepared for: California Energy Commission Prab Sethi Contract Manager Linda Spiegel

416

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

Energy Research and Development Division FINAL PROJECT REPORT DEVELOPMENT OF STEAM5002013092AP Prepared for: California Energy Commission Prepared by: University of California #12 Energy Commission David Effross Contract Manager Linda Spiegel Office Manager Energy Generation Research

417

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

Energy Research and Development Division FINAL PROJECT REPORT ENERGYEFFICIENT HIGHTECH BUILDINGS DECEMBER 2008 CEC5002013062 Prepared for: California Energy Commission Prepared by-06-053 Prepared for: California Energy Commission Paul Roggensack Contract Manager Virginia Lew Office Manager

418

RIKEN Center for Emergent Matter Science Strong Correlation Physics Division  

E-Print Network [OSTI]

Device Research Team Emergent Soft Matter Structure Reserch Team Emergent Functional Polymers Research Information Electronics Division Quantum Functional System Research Group Quantum Optics Research Group Quantum Electronics Research Team Emergent Phenomena Observation Technology Research Team Quantum Nano

Fukai, Tomoki

419

Division of Medical Sciences DISSERTATION ADVISOR DECLARATION FORM  

E-Print Network [OSTI]

Division of Medical Sciences DISSERTATION ADVISOR DECLARATION FORM STEP 1 ­ To be completed research project/ topic: Name of Proposed Dissertation Advisor ­ To be completed by Dissertation Advisor Advisor's Name

Bulyk, Martha L.

420

Earth Sciences Division annual report 1981. [Lead abstract  

SciTech Connect (OSTI)

Separate abstracts were prepared for the 59 papers of the 1981 annual report of the Earth Sciences Division at Lawrence Berkeley Laboratory. The general topics covered included nuclear waste isolation, geophysics and reservoir engineering, and geosciences. (KRM)

Not Available

1982-09-01T23:59:59.000Z

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While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

and Dean Fennell at the Energy Information Administration; Larry Hunsaker, Marc Vayssieres, and Webster Energy Research and Development Division FINAL PROJECT REPORT CALIFORNIA ENERGY BALANCE UPDATE AND DECOMPOSITION ANALYSIS FOR THE INDUSTRY AND BUILDING SECTORS APRIL 2013

422

Federal Government Congressional Budget Office, Budget Analysis Division Washington, DC  

E-Print Network [OSTI]

Administration, Center for Drug Evaluation and Research Washington, DC Federal Energy Regulatory CommissionFederal Government Congressional Budget Office, Budget Analysis Division Washington, DC Department Environmental Protection Agency, Office of Transportation & Air Quality Ann Arbor, MI Federal Drug

Shyy, Wei

423

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

are either present or past employees of Solazyme, Inc. #12;2 PREFACE The California Energy Commission Energy Research and Development Division FINAL PROJECT REPORT PRODUCTION OF SOLADIESEL RD® FROM CELLULOSIC FEEDSTOCKS JULY 2011 CEC5002013019 Prepared for: California Energy

424

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

Energy Research and Development Division FINAL PROJECT REPORT Developing5002013109 Prepared for: California Energy Commission Prepared by: Growpro Inc #12; Prepared by Waimauku, New Zealand Contract Number: PIR-07-001 Prepared for: California Energy Commission Abolghasem

425

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

Energy Research and Development Division FINAL PROJECT REPORT DEVELOPMENT Energy Commission Prepared by: Lawrence Berkeley National Laboratory #12; PREPARED BY: Primary-09-010 Prepared for: California Energy Commission Matthew Fung Contract Manager Virginia Lew Office Manager Energy

426

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

Energy Research and Development Division FINAL PROJECT REPORT LIGHTING CALIFORNIA'S FUTURE RetrofitIntegrated Classroom Lighting System (RICLS) Prepared for: California Energy Commission Managed by: Architectural Energy Corporation Prepared by: Finelite Inc. FEBRUARY 2013 CEC

427

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

Energy Research and Development Division FINAL PROJECT REPORT GREENGUIDE FOR SUSTAINABLE ENERGY EFFICIENT REFRIGERATED STORAGE FACILITIES MARCH 2013 CEC-500-2013-145 Prepared for: California Energy for: California Energy Commission Anish Gautam Contract Manager Virginia Lew Office Manager Energy

428

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

Energy Research and Development Division FINAL PROJECT REPORT PRELIMINARY ESTIMATES5002013051 Prepared for: California Energy Commission Prepared by: Lawrence Berkeley National Laboratory: 500-99-013 Prepared for: California Energy Commission Steve Ghadiri Contract Manager Fernando Piña

429

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

Energy Research and Development Division FINAL PROJECT REPORT EMISSIONS REDUCTIONS FROM RENEWABLE ENERGY AND ENERGY EFFICIENCY IN CALIFORNIA AIR QUALITY MANAGEMENT DISTRICTS DECEMBER 2011 CEC5002013047 Prepared for: California Energy Commission Prepared by: Synapse Energy

430

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

Energy Research and Development Division FINAL PROJECT REPORT ENERGY for: California Energy Commission Prepared by: San Diego State Research Foundation #12: California Energy Commission Raquel Kravitz Program Manager Fernando Pina Office Manager Energy Systems

431

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

Energy Research and Development Division FINAL PROJECT REPORT PLANNING ALTERNATIVE5002013021 Prepared for: California Energy Commission Prepared by: Facet Decision Systems, Inc. #12-08-030 Prepared for: California Energy Commission Linda Spiegel Contract Manager Linda Spiegel Office Manager

432

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

Energy Research and Development Division FINAL PROJECT REPORT Technology MARCH 2013 CEC5002012077 Prepared for: California Energy Commission Prepared by: Heschong Mahone-03-026 Prepared for: California Energy Commission Kristy Chew Contract Manager Fernando Pina Office Manager Energy

433

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

Energy Research and Development Division FINAL PROJECT REPORT COMMERCIALIZING ZERO ENERGY NEW HOME COMMUNITIES Appendices MARCH 2010 CEC5002014007AP Prepared for: California Energy SunPower Corporation Contract Number: 500-04-022 Prepared for: California Energy Commission Golam

434

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

Energy Research and Development Division FINAL PROJECT REPORT ENERGY for: California Energy Commission Prepared by: San Diego State Research Foundation #12 Energy Commission Raquel E. Kravitz Program Manager Fernando Pina Office Manager Energy Systems Research

435

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

Energy Research and Development Division FINAL PROJECT REPORT ASSESSMENT OF PIEZOELECTRIC MATERIALS FOR ROADWAY ENERGY HARVESTING Cost of Energy and Demonstration Roadmap Prepared for: California Energy Commission Prepared by: DNV KEMA Energy & Sustainability JANUARY 2014 CEC5002013007

436

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

Energy Research and Development Division FINAL PROJECT REPORT SMUD OFFPEAK OVERCOOLING PROJECT DECEMBER 2007 CEC5002013066 Prepared for: California Energy Commission Prepared by: Davis Energy Group #12; PREPARED BY: Primary Author(s): David Springer Davis Energy Group Davis, CA

437

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

Energy Research and Development Division FINAL PROJECT REPORT DEMANDCONTROLLED VENTILATION AND CLASSROOM VENTILATION SEPTEMBER 2009 CEC5002013057 Prepared for: California Energy. Sullivan Indoor Environment Group Energy Analysis and Environmental Impacts Department Lawrence Berkeley

438

EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH CERN PS DIVISION  

E-Print Network [OSTI]

EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH CERN PS DIVISION CERN/PS 2002-016 (AE) CLIC Note 514 practically conserved. However EGUN simulations have been performed to ensure electron laminar flow

Boyer, Edmond

439

Updated November 1, 2013 Division of Agriculture, Forestry,  

E-Print Network [OSTI]

Updated November 1, 2013 Division of Agriculture, Forestry, and Veterinary Medicine Administrative, & Aquaculture Dr. Eric Dibble (Interim) Forest Products Dr. Rubin Shmulsky Forestry Dr. Andrew Ezell Associate Turner Assistant Dean Vacant Director, Agricultural & Forestry Experiment Station Dr. George Hopper

Ray, David

440

Division of IT Convergence Engineering Datacenter Traffic Monitoring  

E-Print Network [OSTI]

Division of IT Convergence Engineering Datacenter Traffic Monitoring Using Traffic Mirroring, Korea 3 School of Computer Science, University of Waterloo, Canada In these days, datacenter traffic has been increased rapidly. Monitoring datacenter traffic is more difficult than conventional Internet

Boutaba, Raouf

Note: This page contains sample records for the topic "division head rf" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Engineering Research Division report on reports: calendar year 1979. [LLL  

SciTech Connect (OSTI)

A bibliography of publications of members of the Engineering Research Division of the Electronics Engineering Department is presented for 1979. Abstracts for 148 publications are included, along with author and keywork indexes. (RWR)

Gardner, C.L.; Johnston, S.J. (eds.)

1980-03-01T23:59:59.000Z

442

REQUEST BY WESTINGHOUSE POWER GENERATION, A FORMER DIVISION OF...  

Broader source: Energy.gov (indexed) [DOE]

NO. DE-AC21-95MC30247; DOE WAIVER DOCKET W(A)-98-006 ORO-737 Westinghouse Power Generation, a former division of CBS Corporation (hereinafter referred to as "the Contractor"),...

443

REQUEST BY WESTINGHOUSE POWER GENERATION, A FORMER DIVISION OF...  

Broader source: Energy.gov (indexed) [DOE]

NO. DE-FC21-95MC32267; DOE WAIVER DOCKET W(A)-96-002 ORO-620 Westinghouse Power Generation, a former division of CBS Corporation (hereinafter referred to as "the...

444

EL Program: Sustainable Engineered Materials Program Manager: Aaron Forster, Division  

E-Print Network [OSTI]

1 EL Program: Sustainable Engineered Materials Program Manager: Aaron Forster, Division Associate Program Manager: None Strategic Goal: Sustainable and Energy-Effic Infrastructure 731 ient Manufacturing used in infrastructure, construction, and manufacturing are not able to ensure sustainable performance

445

Biology Division. Progress report, August 1, 1982-September 30, 1983  

SciTech Connect (OSTI)

The Biology Division is the component of the Oak Ridge National Laboratory that investigates the potential adverse health effects of energy-related substances. The body of this report provides summaries of the aims, scope and progress of the research of groups of investigators in the Division during the period of August 1, 1982, through September 30, 1983. At the end of each summary is a list of publications covering the same period (published or accepted for publication). For convenience, the summaries are assembled under Sections in accordance with the current organizational structure of the Biology Division; each Section begins with an overview. It will be apparent, however, that currents run throughout the Division and that the various programs support and interact with each other.

Not Available

1984-01-01T23:59:59.000Z

446

DIVISION OF ACADEMIC AFFAIRS OFFICE OF THE REGISTRAR  

E-Print Network [OSTI]

Engineering ELEN ECEN Industrial Engineering INEN ISEN Nuclear Engineering NUEN NUEN Petroleum Engineering Dwight Look College of Engineering Aerospace Engineering AERO AERO Computer Science CPSC CSCE Electrical PETE PETE Radiological Health Engineering RHEN NUEN #12;DIVISION OF ACADEMIC AFFAIRS OFFICE

447

Agricultural Engineering and Socio-Economics Division Field Contents Member  

E-Print Network [OSTI]

, modeling of hydrological and substance cycle and its application to water resources management. TANAKAMARUAgricultural Engineering and Socio-Economics Division Field Contents Member Environmental, H. Professor TADA,A.Associate Professor Geotechnical and Environmental Engineering for Agricultural

Banbara, Mutsunori

448

Harrison Radiator Division's Energy Management, Reporting and Accounting System  

E-Print Network [OSTI]

HARRISON RADIATOR DIVISION'S ENERGY MANAGEMENT, REPORTING and ACCOUNTING SYSTEM Ronald J. Goubeaux Harrison Radiator Division Lockport, New York ABSTRACT Energy management is essential for obtaining the lowest possible product..., farm equipment, small aircraft and other types of vehicles. The energy management, reporting and accounting system that is covered in this paper is operating in Harrison's West Complex of the New York Operations located in Lockport, Western...

Goubeaux, R. J.

449

Solid state RF power: The route to 1W per euro cent  

SciTech Connect (OSTI)

In most particle accelerators RF power is a decisive design constraint due to high costs and relative inflexibility of current electron beam based RF sources, i.e. Klystrons, Magnetrons, Tetrodes etc. At VHF/UHF frequencies the transition to solid state devices promises to fundamentally change the situation. Recent progress brings 1 Watt per Euro cent installed cost within reach. We present a Silicon Carbide semiconductor solution utilising the Solid State Direct Drive technology at unprecedented efficiency, power levels and power densities. The proposed solution allows retrofitting of existing RF accelerators and opens the route to novel particle accelerator concepts.

Heid, Oliver [Siemens AG, Mozartstrasse 57, Erlangen (Germany)

2013-04-19T23:59:59.000Z

450

RF-driven ion source with a back-streaming electron dump  

DOE Patents [OSTI]

A novel ion source is described having an improved lifetime. The ion source, in one embodiment, is a proton source, including an external RF antenna mounted to an RF window. To prevent backstreaming electrons formed in the beam column from striking the RF window, a back streaming electron dump is provided, which in one embodiment is formed of a cylindrical tube, open at one end to the ion source chamber and capped at its other end by a metal plug. The plug, maintained at the same electrical potential as the source, captures these backstreaming electrons, and thus prevents localized heating of the window, which due to said heating, might otherwise cause window damage.

Kwan, Joe; Ji, Qing

2014-05-20T23:59:59.000Z

451

RF-sheath heat flux estimates on Tore Supra and JET ICRF antennae. Extrapolation to ITER  

SciTech Connect (OSTI)

RF-sheath induced heat loads are identified from infrared thermography measurements on Tore Supra ITER-like prototype and JET A2 antennae, and are quantified by fitting thermal calculations. Using a simple scaling law assessed experimentally, the estimated heat fluxes are then extrapolated to the ITER ICRF launcher delivering 20 MW RF power for several plasma scenarios. Parallel heat fluxes up to 6.7 MW/m{sup 2} are expected very locally on ITER antenna front face. The role of edge density on operation is stressed as a trade-off between easy RF coupling and reasonable heat loads. Sources of uncertainty on the results are identified.

Colas, L.; Portafaix, C.; Goniche, M. [CEA, IRFM, F-13108 Saint-Paul-lez-Durance (France); Jacquet, Ph. [EURATOM/UKAEA Fusion Association, Culham, OX14 3DB (United Kingdom); Agarici, G. [Fusion for Energy, C/Josep Pla 2, E-08019 Barcelona (Spain)

2009-11-26T23:59:59.000Z

452

Arc Detection and Interlock Module for the PEP II Low Level RF System  

SciTech Connect (OSTI)

A new arc detection and interlock generating module for the SLAC PEP-II low-level RF VXI-based system has been developed. The system is required to turn off the RF drive and high voltage power supply in the event of arcing in the cavity windows, klystron window, or circulator. Infrared photodiodes receive arc signals through radiation resistant optical fibers. Gain and bandwidth are selectable for each channel to allow tailoring response. The module also responds to interlock requests from other modules in the VXI system and communicates with the programmable logic controller (PLC) responsible for much of the low-level RF system's interlock functionality.

Tighe, R.; /SLAC

2011-08-31T23:59:59.000Z

453

Integrated head package for top mounted nuclear instrumentation  

DOE Patents [OSTI]

A nuclear reactor such as a pressurized water reactor has an integrated head package providing structural support and increasing shielding leading toward the vessel head. A reactor vessel head engages the reactor vessel, and a control rod guide mechanism over the vessel head raises and lowers control rods in certain of the thimble tubes, traversing penetrations in the reactor vessel head, and being coupled to the control rods. An instrumentation tube structure includes instrumentation tubes with sensors movable into certain thimble tubes disposed in the fuel assemblies. Couplings for the sensors also traverse penetrations in the reactor vessel head. A shroud is attached over the reactor vessel head and encloses the control rod guide mechanism and at least a portion of the instrumentation tubes when retracted. The shroud forms a structural element of sufficient strength to support the vessel head, the control rod guide mechanism and the instrumentation tube structure, and includes radiation shielding material for limiting passage of radiation from retracted instrumentation tubes. The shroud is thicker at the bottom adjacent the vessel head, where the more irradiated lower ends of retracted sensors reside. The vessel head, shroud and contents thus can be removed from the reactor as a unit and rested safely and securely on a support.

Malandra, Louis J. (McKeesport, PA); Hornak, Leonard P. (Forest Hills, PA); Meuschke, Robert E. (Monroeville, PA)

1993-01-01T23:59:59.000Z

454

41 Current projects Climate Variability Research Research within this Division focuses on large-scale  

E-Print Network [OSTI]

Research Division participates in the informal network for Earth System Models of Intermediate Complexity

Haak, Hein

455

Lawrence Berkeley National Laboratory Facilities Division- Optimizing Activity-level Work Planning and Control Lessons Learned  

Broader source: Energy.gov [DOE]

Presenter: Ken Fletcher, Deputy Division Director for Facilities, Lawrence Berkeley National Laboratory

456

Estimating IMU heading error from SAR images.  

SciTech Connect (OSTI)

Angular orientation errors of the real antenna for Synthetic Aperture Radar (SAR) will manifest as undesired illumination gradients in SAR images. These gradients can be measured, and the pointing error can be calculated. This can be done for single images, but done more robustly using multi-image methods. Several methods are provided in this report. The pointing error can then be fed back to the navigation Kalman filter to correct for problematic heading (yaw) error drift. This can mitigate the need for uncomfortable and undesired IMU alignment maneuvers such as S-turns.

Doerry, Armin Walter

2009-03-01T23:59:59.000Z

457

DA!NE TECHNICAL NOTE INFN -LNF, Accelerator Division  

E-Print Network [OSTI]

of the sensitivity to the mechanical deformations induced by the surface power loss on the metallic walls distribution inside the structure due respectively to radiation heat and electromagnetic power loss produced if the temperature profile in case of radiation heating is flatter than that induced by the rf-surface power loss

Istituto Nazionale di Fisica Nucleare (INFN)

458

Onderwerpscodes Chemie -Farmacie / Subject headings Chemistry -Pharmacy, 2009, April1 Rubrieken Chemie -Farmacie: Subject headings Chemistry -  

E-Print Network [OSTI]

chemie 07 Inorganic chemistry 11.14 - 08 Organische chemie 08 Organic chemistry 12.11 - 10 Didactics and priciples of chemistry 14.03 - 16 Vervolgwerken - Annuals 16 Book series and annuals 14Onderwerpscodes Chemie - Farmacie / Subject headings Chemistry - Pharmacy, 2009, April1 Rubrieken

Galis, Frietson

459

Tunable Substrate Integrated Waveguide Filters Implemented with PIN Diodes and RF MEMS Switches  

E-Print Network [OSTI]

This thesis presents the first fully tunable substrate integrated waveguide (SIW) filter implemented with PIN diodes and RF MEMS switches. The methodology for tuning SIW filters is explained in detail and is used to create three separate designs...

Armendariz, Marcelino

2012-02-14T23:59:59.000Z

460

E-Print Network 3.0 - average current rf Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

management estimates the channel upon a frame recep- tion. MIMO... MHz bandwidth. 6.2 Simulation Results We compare the average energy per bit of RF chain management... measure...

Note: This page contains sample records for the topic "division head rf" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

A New First-Principles Calculation of Field-Dependent RF Surface Impedance of BCS Superconductor  

SciTech Connect (OSTI)

There is a need to understand the intrinsic limit of radiofrequency (RF) surface impedance that determines the performance of superconducting RF cavities in particle accelerators. Here we present a field-dependent derivation of Mattis-Bardeen theory of the RF surface impedance of BCS superconductors based on the shifted density of states resulting from coherently moving Cooper pairs. Our theoretical prediction of the effective BCS RF surface resistance (Rs) of niobium as a function of peak surface magnetic field amplitude agrees well with recently reported record low loss resonant cavity measurements from JLab and FNAL with carefully, yet differently, prepared niobium material. The surprising reduction in resistance with increasing field is explained to be an intrinsic effect.

Xiao, Binping [Brookhaven National Laboratory, Upton, New York (United States); Reece, Charles E. [Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)

2014-02-01T23:59:59.000Z

462

Design of RF/IF analog to digital converters for software radio communication receivers  

E-Print Network [OSTI]

Software radio architecture can support multiple standards by performing analogto- digital (A/D) conversion of the radio frequency (RF) signals and running reconfigurable software programs on the backend digital signal processor (DSP). A slight...

Thandri, Bharath Kumar

2007-09-17T23:59:59.000Z

463

Highly Parallel Magnetic Resonance Imaging with a Fourth Gradient Channel for Compensation of RF Phase Patterns  

E-Print Network [OSTI]

A fourth gradient channel was implemented to provide slice dependent RF coil phase compensation for arrays in dual-sided or "sandwich" configurations. The use of highly parallel arrays for single echo acquisition magnetic resonance imaging allows...

Bosshard, John 1983-

2012-08-20T23:59:59.000Z

464

E-Print Network 3.0 - atmospheric rf device Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

rf device Page: << < 1 2 3 4 5 > >> 1 Packaging of Ka-Band Patch Antenna and Optoelectronic Components for Dual-Mode Indoor Wireless Communication Summary: that the coupling...

465

Experimental evaluation of 350 MHz RF accelerator windows for the low energy demonstration accelerator  

SciTech Connect (OSTI)

Radio frequency (RF) windows are historically a point where failure occurs in input power couplers for accelerators. To obtain a reliable, high-power, 350 MHz RF window for the Low Energy Demonstration Accelerator (LEDA) project of the Accelerator Production of Tritium program, RF windows prototypes from different vendors were tested. Experiments were performed to evaluate the RF windows by the vendors to select a window for the LEDA project. The Communications and Power, Inc. (CPI) windows were conditioned to 445 kW in roughly 15 hours. At 445 kW a window failed, and the cause of the failure will be presented. The English Electronic Valve, Inc. (EEV) windows were conditioned to 944 kW in 26 hours and then tested at 944 kW for 4 hours with no indication of problems.

Cummings, K.; Rees, D.; Roybal, W. [and others

1997-09-01T23:59:59.000Z

466

PURDUE UNIVERSITY ULTRAFAST OPTICS & OPTICAL FIBER COMMUNICATIONS LABORATORY Photonic RF Waveform Synthesis,  

E-Print Network [OSTI]

PURDUE UNIVERSITY ULTRAFAST OPTICS & OPTICAL FIBER COMMUNICATIONS LABORATORY Photonic RF Waveform, Shijun Xiao Funding from ARO, DARPA, and NSF #12;PURDUE UNIVERSITY ULTRAFAST OPTICS & OPTICAL FIBER performance (spectral engineering, dispersion compensation) #12;PURDUE UNIVERSITY ULTRAFAST OPTICS & OPTICAL

Purdue University

467

Detection technique and front-end RF tunable filter for cognitive radio systems  

E-Print Network [OSTI]

dual-mode WiMAX/WLAN direct- conversion receiver, in Proc.Hamilton, Aspects of direct conversion receiver design, inand M. Ismail, A direct conversion WiMAX RF receiver front-

Park, Sanghoon

2010-01-01T23:59:59.000Z

468

High gain proportional rf control stability at TESLA cavities Elmar Vogel  

E-Print Network [OSTI]

High gain proportional rf control stability at TESLA cavities Elmar Vogel Deutsches Elektronen) based on TESLA technology. Additional control loops improve the field regulation by treating repetitive loops is desirable for the strong suppression of nonpredictive and nonrepetitive disturbances. TESLA

469

Thesis for the Degree of Licentiate of Engineering CTH-RF-190 Development and Investigation of  

E-Print Network [OSTI]

Thesis for the Degree of Licentiate of Engineering CTH-RF-190 Development and Investigation (ADS), Feynman-alpha formulae, source modulation method, point kinetics #12;#12;This licentiate thesis

Haviland, David

470

A CW normal-conductive RF gun for free electron laser and energy recovery linac applications  

E-Print Network [OSTI]

Todd, State-of-the art electron guns and injector de- signs,7] Summary of working group on guns and injectors, 41st Ad-A CW normal-conductive RF gun for free electron laser and

Baptiste, Kenneth

2009-01-01T23:59:59.000Z

471

A high-gradient high-duty-factor Rf photo-cathode electron gun  

E-Print Network [OSTI]

approximately 13 MV/m, but in the gun cell the fields couldBeam Radius [mm] End of rf gun Uncompensated Compensated 6preliminary analysis of the gun indicates that the fields in

Rimmer, Robert A.; Hartman, Neal; Lidia, Steven M.; Wang, Shaoheng

2002-01-01T23:59:59.000Z

472

Analysis of slice transverse emittance evolutioin in a photocathode RF gun  

E-Print Network [OSTI]

evolution at 1 nC for the LCLS gun including the solenoidevolution at 1 nC for the LCLS gun including the solenoidevolution in a photocathode RF gun Zhirong Huang, Yuantao

Huang, Zhirong

2009-01-01T23:59:59.000Z

473

High-power rf-pulsed modulators for the Los Alamos free-electron laser  

SciTech Connect (OSTI)

In the rf-driven free-electron laser (FEL) at the Los Alamos National Laboratory, there are two pulsed-power rf modulators as sources for two tandem, side-coupled 20-MeV linear accelerators. The rf power used to control the cavity fields is supplied by two 5.5-MW modulating anode klystrons operating at a center frequency of 1300.2 MHz. The modulation of the 125 kV klystron is achieved by using a triode switch tube that provides a pulse width up to 300 ..mu..s and a pulse repetition rate up to 10 Hz. This paper describes the present configuration of these two duplicate systems and presents plans for meeting the requirements of future rf FEL experiments at Los Alamos. 12 refs., 5 figs.

Johnson, W.J.D.; Lynch, M.T.; Tallerico, P.J.; Keffeler, D.R.; Hornkohl, J.O.

1987-09-01T23:59:59.000Z

474

Deeply-scaled GaN high electron mobility transistors for RF applications  

E-Print Network [OSTI]

Due to the unique combination of large critical breakdown field and high electron velocity, GaN-based high electron mobility transistors (HEMTs) have great potential for next generation high power RF amplifiers. The ...

Lee, Dong Seup

2014-01-01T23:59:59.000Z

475

E-Print Network 3.0 - active rf pulse Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

that the duty ratios of the pulse are kept large for small input. Then, an RF pulse train is generated by mixing... the modulated envelope with the phase modulated carrier. The...

476

Wide-Range Bolometer with RF Readout TES  

E-Print Network [OSTI]

To improve both scalability and noise-filtering capability of a Transition-Edge Sensor (TES), a new concept of a thin-film detector is suggested, which is based on embedding a microbridge TES into a high-Q planar GHz range resonator weakly coupled to a 50 Ohm-readout transmission line. Such a TES element is designed as a hot-electron microbolometer coupled to a THz range antenna and as a load of the resonator at the same time. A weak THz signal coupled to the antenna heats the microbridge TES, thus reducing the quality factor of the resonator and leading to a power increment in the readout line. The power-to-power conversion gain, an essential figure of merit, is estimated to be above 10. To demonstrate the basic concept, we fabricated and tested a few submicron sized devices from Nb thin films for operation temperature about 5 K. The dc and rf characterization of the new device is made at a resonator frequency about 5.8 GHz. A low-noise HEMT amplifier is used in our TES experiments without the need for a SQU...

Shitov, S V; Kuzmin, A A; Merker, M; Arndt, M; Wuensch, S H; Ilin, K S; Erhan, E; Ustinov, A; Siegel, M

2014-01-01T23:59:59.000Z

477

Superconducting RF Linac Technology for ERL Light Sources  

SciTech Connect (OSTI)

Energy Recovering Linacs (ERLs) offer an attractive alternative as drivers for light sources as they combine the desirable characteristics of both storage rings (high efficiency) and linear accelerators (superior beam quality). Using superconducting RF technology allows ERLs to operate more efficiently because of the inherent characteristics of SRF linacs, namely that they are high gradient-low impedance structures and their ability to operate in the long pulse or CW regime. We present an overview of the physics challenges encountered in the design and operation of ERL based light sources with particular emphasis on those issues related to SRF technology. These challenges include maximizing a cavity???????¢????????????????s Qo to increase cryogenic efficiency, maintaining control of the cavity field in the presence of the highest feasible loaded Q and providing adequate damping of the higher-order modes (HOMs). If not sufficiently damped, dipole HOMs can drive the multipass beam breakup (BBU) instability which ERLs are particularly susceptible to. Another challenge involves efficiently extracting the potentially large amounts of HOM power that are generated when a bunch traverses the SRF cavities and which may extend over a high range of frequencies. We present experimental data from the Jefferson Lab FEL Upgrade, a 10 mA ERL light source presently in operation, aimed at addressing some of these issues. We conclude with an outlook towards the future of ERL based light sources.

Chris Tennant

2005-08-01T23:59:59.000Z

478

Comparison of the theory and the practice of rf current drive  

SciTech Connect (OSTI)

The theory of rf-driven plasma currents is applied to the lower-hybrid experiments on the PLT tokamak. Particular emphasis is placed on those experiments in which the plasma current was varying. The comparison between theory and experiment is made with respect to the efficiency with which rf energy was converted to poloidal magnetic field energy. Good agreement is found irrespective of whether the current was increasing, constant, or decreasing.

Karney, C.F.F.; Fisch, N.J.; Jobes, F.C.

1984-10-01T23:59:59.000Z

479

Laser cooling and sympathetic cooling in a linear quadrupole rf trap  

E-Print Network [OSTI]

LASER COOLING AND SYMPATHETIC COOLING IN A LINEAR QUADRUPOLE RF TRAP A Dissertation by VLADIMIR LEONIDOVICH RYJKOV Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree... of DOCTOR OF PHILOSOPHY December 2003 Major Subject: Physics LASER COOLING AND SYMPATHETIC COOLING IN A LINEAR QUADRUPOLE RF TRAP A Dissertation by VLADIMIR LEONIDOVICH RYJKOV Submitted to Texas A&M University in partial fulfillment of the requirements...

Ryjkov, Vladimir Leonidovich

2005-02-17T23:59:59.000Z

480

Analytical Chemistry Division annual progress report for period ending December 31, 1991  

SciTech Connect (OSTI)

The following sentences highlight some of the technical activities carried out during 1991. They illustrate the diversity of programs and technical work performed within the Analytical Chemistry Division. Our neutron activation analysis laboratory at HFIR was placed into operation during 1991. We have combined inductively coupled plasma mass spectrometry (ICP/MS) with a preparation procedure developed at the Argonne National Laboratory to measure ultra-trace levels of U, Pu, Np, and Am in body fluids, primarily urine. Much progress has been made over the last year in the interfacing of an rf-powered glow discharge source to a double-focusing mass spectrometer. Preliminary experiments using electrospray ionization combined with ion trap mass spectrometry show much promise for the analysis of metals in solution. A secondary ion microprobe has been constructed that permits determination of the distribution of organic compounds less than a monolayer thick on samples as large as 1 cm diameter. Fourier transform mass spectrometry has been demonstrated to be a highly effective tool for the detailed characterization of biopolymers, especially normal and modified oligonucleotides. Much has been accomplished in understanding the fundamentals of quadrupole ion trap mass spectrometry. Work with ITMS instrumentation has led to the development of rapid methods for the detection of trace organics in environmental and physiological samples. A new type of time-of-flight mass spectrometer was designed for use with our positron ionization experiments. Fundamental research on chromatography at high concentrations and on gas-solid adsorption has continued. The preparation of a monograph on the chemistry of environmental tobacco smoke was completed this year.

NONE

1992-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "division head rf" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

antigenic polar heads: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Stenger; Robert L. Modlin; Ian A. Wilson; Steven A. Porcelli; Michael B. Brenner 1999-01-01 11 Head: Vacancy Quality & Standards Mathematics Websites Summary: : Dr Sarah...

482

Council on Environmental Quality - Memorandum for Heads of Federal...  

Open Energy Info (EERE)

navigation, search OpenEI Reference LibraryAdd to library Memorandum: Council on Environmental Quality - Memorandum for Heads of Federal Departments and Agencies Abstract This...

483

Light water reactor lower head failure analysis  

SciTech Connect (OSTI)

This document presents the results from a US Nuclear Regulatory Commission-sponsored research program to investigate the mode and timing of vessel lower head failure. Major objectives of the analysis were to identify plausible failure mechanisms and to develop a method for determining which failure mode would occur first in different light water reactor designs and accident conditions. Failure mechanisms, such as tube ejection, tube rupture, global vessel failure, and localized vessel creep rupture, were studied. Newly developed models and existing models were applied to predict which failure mechanism would occur first in various severe accident scenarios. So that a broader range of conditions could be considered simultaneously, calculations relied heavily on models with closed-form or simplified numerical solution techniques. Finite element techniques-were employed for analytical model verification and examining more detailed phenomena. High-temperature creep and tensile data were obtained for predicting vessel and penetration structural response.

Rempe, J.L.; Chavez, S.A.; Thinnes, G.L. [EG and G Idaho, Inc., Idaho Falls, ID (United States)] [and others

1993-10-01T23:59:59.000Z

484

Closure head for a nuclear reactor  

DOE Patents [OSTI]

A closure head for a nuclear reactor includes a stationary outer ring integral with the reactor vessel with a first rotatable plug disposed within the stationary outer ring and supported from the stationary outer ring by a bearing assembly. A sealing system is associated with the bearing assembly to seal the annulus defined between the first rotatable plug and the stationary outer ring. The sealing system comprises tubular seal elements disposed in the annulus with load springs contacting the tubular seal elements so as to force the tubular seal elements against the annulus in a manner to seal the annulus. The sealing system also comprises a sealing fluid which is pumped through the annulus and over the tubular seal elements causing the load springs to compress thereby reducing the friction between the tubular seal elements and the rotatable components while maintaining a gas-tight seal therebetween.

Wade, Elman E. (South Huntingdon, PA)

1980-01-01T23:59:59.000Z

485

RF properties of periodic accelerating structures for linear colliders  

SciTech Connect (OSTI)

With the advent of the SLAC electron-positron linear collider (SLC) in the 100 GeV center-of-mass energy range, research and development work on even higher energy machines of this type has started in several laboratories in the United States, Europe, the Soviet Union and Japan. These linear colliders appear to provide the only promising approach to studying e/sup /plus//e/sup /minus// physics at center-of-mass energies approaching 1 TeV. This thesis concerns itself with the study of radio frequency properties of periodic accelerating structures for linear colliders and their interaction with bunched beams. The topics that have been investigated are: experimental measurements of the energy loss of single bunches to longitudinal modes in two types of structures, using an equivalent signal on a coaxial wire to simulate the beam; a method of canceling the energy spread created within a single bunch by longitudinal wakefields, through appropriate shaping of the longitudinal charge distribution of the bunch; derivation of the complete transient beam-loading equation for a train of bunches passing through a constant-gradient accelerator section, with application to the calculation and minimization of multi-bunch energy spread; detailed study of field emission and radio frequency breakdown in disk-loaded structures at S-, C- and X-band frequencies under extremely high-gradient conditions, with special attention to thermal effects, radiation, sparking, emission of gases, surface damage through explosive emission and its possible control through RF-gas processing. 53 refs., 49 figs., 9 tabs.

Wang, J.W.

1989-07-01T23:59:59.000Z

486

Topic Models to Interpret MeSH MEDLINE's Medical Subject Headings  

E-Print Network [OSTI]

://ii.nlm.nih.gov/mti.shtml #12;MeSH heading Major MeSH heading Major qualifier MeSH-qualifier combination Humans Brain metabolism Brain (metabolism) Table 1. Most frequent MeSH headings, major MeSH headings, major qualifiers and MeTopic Models to Interpret MeSH MEDLINE's Medical Subject Headings David Newman12 , Sarvnaz Karimi

Newman, David

487

Mobile Museum Tours 1 RUNNING HEAD: MOBILE MUSEUM TOURS  

E-Print Network [OSTI]

Mobile Museum Tours 1 RUNNING HEAD: MOBILE MUSEUM TOURS Using mobile technologies for multimedia MUSEUM TOURS Abstract Mobile technology was used to deliver learner-centred experiences to visitors: Across generations and cultures, Banff : Canada (2006)" #12;Mobile Museum Tours 2 RUNNING HEAD: MOBILE

Paris-Sud XI, Universit de

488

Poverty and Productivity in Female-Headed Households in Zimbabwe  

E-Print Network [OSTI]

A household survey conducted in rural Zimbabwe in 2001 is used to compare the position of de facto and de jure female-headed households to those with a male head. These households are characterised by different forms of poverty that impinge...

Horrell, Sara; Krishnan, Pramila

489

Comparison of Measured and Calculated Coupling between a Waveguide and an RF Cavity Using CST Microwave Studio  

SciTech Connect (OSTI)

Accurate predications of RF coupling between an RF cavity and ports attached to it have been an important study subject for years for RF coupler and higher order modes (HOM) damping design. We report recent progress and a method on the RF coupling simulations between waveguide ports and RF cavities using CST Microwave Studio in time domain (Transit Solver). Comparisons of the measured and calculated couplings are presented. The simulated couplings and frequencies agree within {approx} 10% and {approx} 0.1% with the measurements, respectively. We have simulated couplings with external Qs ranging from {approx} 100 to {approx} 100,000, and confirmed with measurements. The method should also work well for higher Qs, and can be easily applied in RF power coupler designs and HOM damping for normal-conducting and superconducting cavities.

J. Shi; H. Chen; S. Zheng; D. Li; R.A. Rimmer; H. Wang

2006-06-26T23:59:59.000Z

490

Application of new simulation algorithms for modeling rf diagnostics of electron clouds  

SciTech Connect (OSTI)

Traveling wave rf diagnostics of electron cloud build-up show promise as a non-destructive technique for measuring plasma density and the efficacy of mitigation techniques. However, it is very difficult to derive an absolute measure of plasma density from experimental measurements for a variety of technical reasons. Detailed numerical simulations are vital in order to understand experimental data, and have successfully modeled build-up. Such simulations are limited in their ability to reproduce experimental data due to the large separation of scales inherent to the problem. Namely, one must resolve both rf frequencies in the GHz range, as well as the plasma modulation frequency of tens of MHz, while running for very long simulations times, on the order of microseconds. The application of new numerical simulation techniques allow us to bridge the simulation scales in this problem and produce spectra that can be directly compared to experiments. The first method is to use a plasma dielectric model to measure plasma-induced phase shifts in the rf wave. The dielectric is modulated at a low frequency, simulating the effects of multiple bunch crossings. This allows simulations to be performed without kinetic particles representing the plasma, which both speeds up the simulations as well as reduces numerical noise from interpolation of particle charge and currents onto the computational grid. Secondly we utilize a port boundary condition model to simultaneously absorb rf at the simulation boundaries, and to launch the rf into the simulation. This method improves the accuracy of simulations by restricting rf frequencies better than adding an external (finite) current source to drive rf, and absorbing layers at the boundaries. We also explore the effects of non-uniform plasma densities on the simulated spectra.

Veitzer, Seth A.; Smithe, David N.; Stoltz, Peter H. [Tech-X Corporation, Boulder, CO, 80303 (United States)

2012-12-21T23:59:59.000Z

491

Accelerator & Fusion Research Division: 1993 Summary of activities  

SciTech Connect (OSTI)

The Accelerator and Fusion Research Division (AFRD) is not only one of the largest scientific divisions at LBL, but also the one of the most diverse. Major efforts include: (1) investigations in both inertial and magnetic fusion energy; (2) operation of the Advanced Light Source, a state-of-the-art synchrotron radiation facility; (3) exploratory investigations of novel radiation sources and colliders; (4) research and development in superconducting magnets for accelerators and other scientific and industrial applications; and (5) ion beam technology development for nuclear physics and for industrial and biomedical applications. Each of these topics is discussed in detail in this book.

Chew, J.

1994-04-01T23:59:59.000Z

492

Environmental Research Division technical progress report, January 1984-December 1985  

SciTech Connect (OSTI)

Technical progress in the various research and assessment activities of Argonne National Laboratory's Environmental Research Division is reported for the period 1984 to 1985. Textual, graphic, and tabular information is used to briefly summarize (in separate chapters) the work of the Division's Atmospheric Physics, Environmental Effects Research, Environmental Impacts, Fundamental Molecular Physics and Chemistry, and Waste Management Programs. Information on professional qualifications, awards, and outstanding professional activities of staff members, as well as lists of publications, oral presentations, special events organized, and participants in educational programs, are provided in appendices at the end of each chapter.

Not Available

1986-05-01T23:59:59.000Z

493

Physics Division annual review, April 1, 1988--March 31, 1989  

SciTech Connect (OSTI)

This document discusses the following main topics: Research at Atlas; Operation and Development of Atlas; Medium-Energy Nuclear Physics and Weak Interactions; Theoretical Nuclear Physics; Interactions of Fast Atomic and Molecular Ions with Solid and Gaseous Targets; Atomic Physics at Synchrotron Light Sources; Atomic Physics at Atlas and the ECR Source; Theoretical Atomic Physics; High-Resolution Laser-rf Spectroscopy of Atomic and Molecular Beams; and Fast Ion-Beam/Laser Studies of Atomic and Molecular Structure.

Thayer, K.J. (ed.)

1989-08-01T23:59:59.000Z

494

Stabilizing effect of a double-harmonic RF system in the CERN PS  

SciTech Connect (OSTI)

Motivated by the discussions on scenarios for LHC upgrades, beam studies on the stability of flat bunches in a double-harmonic RF system have been conducted in the CERN Proton Synchrotron (PS). Injecting nearly nominal LHC beam intensity per cycle, 18 bunches are accelerated on harmonic h = 21 to 26GeV with the 10MHz RF system. On the flat-top, all bunches are then transformed to flat bunches by adiabatically adding RF voltage at h = 42 from a 20 MHz cavity in anti-phase to the h = 21 system. The voltage ratio V (h42)/V (h21) of about 0.5 was set according to simulations. For the next 140 ms, longitudinal profiles show stable bunches in the double-harmonic RF bucket until extraction. Without the second harmonic component, coupled-bunch oscillations are observed. The flatness of the bunches along the batch is analyzed as a measure of the relative phase error between the RF systems due to beam loading. The results of beam dynamics simulations and their comparison with the measured data are presented.

Bhat, C.; /Fermilab; Caspers, F.; Damerau, H.; Hancock, S.; Mahner, E.; Zimmermann, F.; /CERN

2009-04-01T23:59:59.000Z

495

Simulation of RF Cavity Dark Current In Presence of Helical Magnetic Field  

SciTech Connect (OSTI)

In order to produce muon beam of high enough quality to be used for a Muon Collider, its large phase space must be cooled several orders of magnitude. This task can be accomplished by ionization cooling. Ionization cooling consists of passing a high-emittance muon beam alternately through regions of low Z material, such as liquid hydrogen, and very high accelerating RF cavities within a multi-Tesla solenoidal focusing channel. But first high power tests of RF cavity with beryllium windows in solenoidal magnetic field showed a dramatic drop in accelerating gradient due to RF breakdowns. It has been concluded that external magnetic fields parallel to RF electric field significantly modifies the performance of RF cavities. However, magnetic field in Helical Cooling Channel has a strong dipole component in addition to solenoidal one. The dipole component essentially changes electron motion in a cavity compare to pure solenoidal case, making dark current less focused at field emission sites. The simulation of dark current dynamic in HCC performed with CST Studio Suit is presented in this paper.

Romanov, Gennady; Kashikhin, Vladimir; /Fermilab

2012-05-01T23:59:59.000Z

496

Design of a dual stage actuator tape head with high-bandwidth track following capability  

E-Print Network [OSTI]

to the voice coil motor (VCM). A leaf spring on top of thespring Slot Air bearing surface Read/write elements (in slot) Bracket (b) Servo head Read head Write head Voice coil

Raeymaekers, Bart; Graham, Matthew R.; Callafon, Raymond A.; Talke, Frank E.

2009-01-01T23:59:59.000Z

497

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

Energy Research and Development Division FINAL PROJECT REPORT TIME OF USE WATER METER IMPACTS · Transportation Time-of-Use Water Meter Impacts on Customer Water Use is the final report for the Time of Use This report was prepared as the result of work sponsored by the California Energy Commission. It does

498

ENVIRONMENT, SAFETY & HEALTH DIVISION Chapter 10: Laser Safety  

E-Print Network [OSTI]

ENVIRONMENT, SAFETY & HEALTH DIVISION Chapter 10: Laser Safety Laser Service Subcontractor Work is unavailable), and the subcontractor. 2 Procedures The LSO will review the work plans, provide safety oversight that on-site work will be done that requires Site-specific safety plan (SSSP) and job safety analysis

Wechsler, Risa H.

499

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network [OSTI]

, and UC Davis student volunteers. For the UC Davis contingent, we thank Andy Bookter for serving as leadEnergy Research and Development Division FINAL PROJECT REPORT 21st CENTURY INSTREAM FLOW ASSESSMENT FRAMEWORK FOR MOUNTAIN STREAMS MARCH 2011 CEC5002013059 Prepared for: California Energy

500

Division of Human Resources Pay to Non Resident Aliens  

E-Print Network [OSTI]

Division of Human Resources Pay to Non Resident Aliens Questions (813) 974-7955 Payroll a payment is made to a nonresident alien (NRA) or to a third party on their behalf. The following is a list is not comprehensive; therefore, prior to processing any type payment for a nonresident alien it is imperative that you

Meyers, Steven D.